As live streaming continues to evolve across industries from entertainment and education to business and e-commerce it’s crucial for creators, marketers, and technical professionals to understand the language that drives this dynamic medium. Whether you’re a beginner learning the basics or a seasoned producer working with advanced production tools, having a comprehensive glossary of live streaming terminology can significantly enhance your technical fluency and workflow efficiency.
This A–Z Live Streaming Glossary has been meticulously compiled to serve as a definitive reference for anyone involved in real-time broadcasting. Covering everything from hardware and software tools, encoding standards, viewer engagement strategies, monetization models, and platform-specific features, this glossary ensures that no critical term goes unexplained.
Each term is accompanied by a clear, concise definition designed to simplify complex concepts while remaining relevant to today’s live streaming environment—including popular platforms like YouTube Live, Twitch, Facebook Live, TikTok, Zoom, and enterprise systems.
Live Streaming Glossary – Letter A
AAC (Advanced Audio Coding)
A standard audio format used for compressing audio data with higher efficiency than MP3, widely used in live streaming for better sound quality at lower bitrates.
Adaptive Bitrate Streaming (ABR)
A technique that automatically adjusts the video quality of a stream in real time based on the viewer’s internet connection speed and device capabilities.
Aspect Ratio
The width-to-height ratio of a video frame (e.g., 16:9 or 4:3). Maintaining the correct aspect ratio ensures the video isn’t stretched or distorted.
Audio Sync
The synchronization of audio with video. In live streaming, mismatches can lead to delays, where the video and audio are out of sync.
Archiving
The process of saving live-streamed content for future playback. Many platforms allow streams to be automatically saved once the session ends.
API (Application Programming Interface)
A set of tools and protocols that allow different software components to communicate. In live streaming, APIs are used to control broadcasting tools, analytics, and integrations.
Anchor (Live Streaming Host)
The main presenter or personality conducting the live stream, especially common in news, talk shows, or influencer content.
Analytics (Streaming Analytics)
Data and metrics collected during and after a stream, such as viewer count, average watch time, engagement rate, and geographic distribution.
Adaptive Streaming Protocols
Protocols like HLS (HTTP Live Streaming) and MPEG-DASH that allow for ABR (Adaptive Bitrate Streaming), ensuring smooth playback under variable network conditions.
Audio Bitrate
The number of bits used per second to encode audio. Higher bitrates typically result in better sound quality but require more bandwidth.
Auto Start
A setting where the live stream begins automatically when the viewer lands on the page or app, improving immediacy but sometimes impacting user experience.
Amplification
The act of boosting the reach of a stream, often using paid promotions, influencer partnerships, or algorithmic recommendations.
Authentication
The process of verifying a user’s identity before allowing access to a live stream. Common in enterprise or premium content environments.
Archival Delay
The delay or buffer added when saving a live stream to storage to ensure all data is captured completely.
Akamai
A content delivery network (CDN) provider frequently used in live streaming for delivering video content reliably at scale.
Live Streaming Glossary – Letter B
Bandwidth
The maximum amount of data that can be transmitted over an internet connection in a given time. In streaming, higher bandwidth means better quality and less buffering.
Bitrate
The amount of data transmitted per second in a video or audio stream, usually measured in Kbps (kilobits per second) or Mbps (megabits per second). Higher bitrates result in higher quality.
Broadcast
The act of transmitting video or audio content live over the internet to an audience.
Buffering
The process of preloading video data so it can play smoothly. Buffering occurs when the internet connection can’t keep up with the stream’s data rate.
Broadcast Delay
A short intentional delay (often 5–30 seconds) added to live streams to censor or cut inappropriate content before it reaches the audience.
Browser-Based Streaming
Streaming that occurs directly through a web browser without needing additional software, often using WebRTC or HTML5 technology.
Bitrate Ladder
A set of different bitrates and resolutions used in adaptive bitrate streaming, allowing viewers to receive the best possible stream based on their network conditions.
B-Frame (Bidirectional Frame)
A type of video frame used in compression that references both previous and next frames, reducing file size and improving efficiency in streaming.
Broadcast Software
Applications like OBS Studio, Wirecast, or vMix used to encode, mix, and manage live video streams.
Branded Live Stream
A live stream that includes logos, overlays, watermarks, or product mentions to promote a brand.
Bandwidth Throttling
The deliberate slowing of internet speed by ISPs, which can affect live stream quality if bandwidth usage is too high.
Buffer Size
The amount of video data that is preloaded before playback begins. A larger buffer can help prevent interruptions due to fluctuations in internet speed.
Broadcast Encoder
A device or software that compresses live audio/video data into a digital format suitable for streaming online.
Backup Stream
A secondary live feed running in parallel with the main stream, used as a failover in case of technical issues with the primary stream.
Bitrate Control (CBR/VBR/ABR)
Techniques for managing how data is encoded:
- CBR (Constant Bitrate) – Keeps bitrate consistent, easier for decoding.
- VBR (Variable Bitrate) – Changes bitrate based on content complexity.
- ABR (Adaptive Bitrate) – Adjusts in real time based on network conditions.
Broadcast Platform
Services like YouTube Live, Facebook Live, Twitch, and Vimeo that provide the infrastructure for hosting and delivering live video content.
Buffer Underrun
A situation where the playback buffer runs out of data, causing the video to pause or stutter.
Breakout Session
A smaller, focused live stream within a larger virtual event, often used in webinars and online conferences.
Beta Streaming Feature
A new, experimental tool or function offered by a platform for testing before official release.
Boxcast
A live video streaming platform and hardware provider known for simplifying live broadcasting for organizations, churches, and schools.
Live Streaming Glossary – Letter C
CDN (Content Delivery Network)
A network of servers distributed geographically to deliver streaming content quickly and reliably to users by reducing latency and buffering.
Capture Card
A hardware device that converts video input (e.g., from a camera or console) into digital format for live streaming via a computer.
Codec
Short for coder-decoder, it’s a software or hardware tool used to compress and decompress video/audio data. Common codecs include H.264 (video) and AAC (audio).
Closed Captions (CC)
Text displayed on-screen to provide speech or sound information for accessibility. Can be added in real-time during a live stream.
Cloud Streaming
The use of cloud-based services to manage encoding, storage, and delivery of live streaming content, reducing the need for local infrastructure.
Concurrent Viewers
The number of people watching a live stream at the same time. A key metric in evaluating stream popularity and reach.
Chroma Key
A visual effect (commonly called “green screen”) used to replace a solid color background with another image or video in real-time streaming.
Chat Overlay
A visual element in a live stream that displays viewer messages on screen, encouraging real-time interaction and community engagement.
Clipping
The process of selecting and saving a short segment from a live stream, often used for highlights, replays, or social sharing.
Concurrent Streams
Multiple live streams broadcast simultaneously, either from one account or across several channels/platforms.
Control Room
A virtual dashboard or studio used to manage live stream production elements such as sources, transitions, graphics, and audio.
Content Moderation
The process of monitoring and filtering viewer interactions (e.g., live chat) to remove inappropriate comments or spam during a live broadcast.
Crossposting
The practice of broadcasting a live stream across multiple platforms (e.g., YouTube + Facebook Live) simultaneously to reach broader audiences.
Cue Points
Predefined markers in a live stream or video used to trigger specific actions like switching scenes, inserting ads, or pushing overlays.
Call-to-Action (CTA)
A prompt within the live stream encouraging viewers to take specific actions (e.g., “Subscribe now,” “Click the link below”).
Client-Side Streaming
A streaming setup where content is processed and broadcasted from the user’s own device, rather than from a server-side solution.
Camera Switching
The ability to switch between different camera feeds during a live stream for dynamic production, often done using software like OBS or hardware switchers.
Content ID (YouTube)
A YouTube system that scans for copyrighted material in streams and videos and takes automated actions like monetization, blocking, or muting.
Copyright Strike
A penalty issued when copyrighted content is used without permission in a stream. Repeated strikes can result in account suspension or bans.
Connection Speed
Refers to the internet upload bandwidth available for streaming. A stable and sufficient speed is crucial for high-quality live broadcasts.
Custom RTMP
A feature allowing streamers to send their feed to a custom Real-Time Messaging Protocol server, used for broadcasting on niche or self-hosted platforms.
CNAME (Canonical Name Record)
A DNS setting that allows users to use a custom domain for their streaming content, often for branded live stream URLs.
Creative Commons License
A license type that allows use and sharing of content (like music or video) under specific terms. Useful in avoiding copyright issues during streaming.
CPU Usage (in Streaming)
The percentage of a computer’s processing power being used during a stream. High CPU usage can lead to lag or dropped frames.
Continuous Streaming
Live streaming content with no defined end time, often used for surveillance, virtual tours, or ambient broadcasts.
Live Streaming Glossary – Letter D
Dashboard (Streaming Dashboard)
A centralized control panel used by streamers to manage stream settings, monitor performance metrics, and interact with viewers.
Delay (Streaming Delay)
The intentional or unintentional lag between when something is recorded and when it is viewed by the audience. Used for moderation, syncing, or technical reasons.
DVR (Digital Video Recorder) Mode
A live streaming feature that allows viewers to rewind, pause, or replay parts of a stream while it’s still live.
Dropped Frames
Occurs when the streaming software fails to send all frames to the streaming platform due to poor performance or connection issues, leading to choppy playback.
Download Speed
The rate at which data is transferred from the internet to a device. While upload speed is more critical for streamers, download speed matters for viewers.
Dynamic Bitrate
A streaming feature that adjusts the bitrate on the fly depending on the network conditions, ensuring smoother streaming even with fluctuating internet speeds.
Data Rate
The amount of digital data transmitted over a given period, usually measured in bits per second (bps). It includes both audio and video streams.
Device Compatibility
The ability of a live stream to be viewed across different devices—smartphones, tablets, desktops, smart TVs—without quality or format issues.
Desktop Capture
A method of live streaming that captures everything happening on a user’s desktop screen, commonly used for webinars, tutorials, or gameplay.
Dual Streaming
Broadcasting a live stream to two platforms simultaneously, either through native platform settings or using third-party tools.
Digital Rights Management (DRM)
Technology used to protect live streaming content from unauthorized access, copying, or redistribution.
Dynamic Overlay
Real-time graphical elements that appear over a stream—such as alerts, scoreboards, or chat boxes—often triggered by viewer interaction.
Direct Streaming
Streaming directly from a camera or device to a platform without using encoding software (e.g., going live from a smartphone app).
Distribution Point (CDN Node)
A physical server or network location that delivers live stream content to viewers, part of a broader content delivery network (CDN).
Dropout
A brief interruption or complete halt in a live stream caused by a technical failure in network, encoding, or platform systems.
Donation Alert
A pop-up or on-screen graphic triggered during a live stream when a viewer donates money, often used on platforms like Twitch or YouTube.
Dynamic Ad Insertion (DAI)
A technique used to insert ads into a live or on-demand stream based on user data, allowing personalized and non-disruptive advertising.
Dedicated Streaming Server
A physical or virtual server specifically optimized to handle streaming workloads, offering greater stability and performance for high-quality broadcasts.
Device Encoding
When the stream is encoded directly on the streaming device (camera, phone, or tablet), instead of relying on a separate encoder.
Digital Audio Interface (DAI)
A device or software system that converts analog audio input into digital format for inclusion in live streams.
Live Streaming Glossary – Letter E
Encoder
A tool (hardware or software) that converts video and audio input into a digital stream suitable for live broadcasting. Examples include OBS Studio (software) and Teradek (hardware).
Encoding
The process of compressing raw video and audio into a format that can be streamed online. Encoding reduces file size while preserving quality.
Embedded Player
A video player that is embedded on a webpage or app to stream live content, allowing viewers to watch without going to the main platform.
Event Streaming
Live broadcasting of scheduled events such as concerts, sports matches, conferences, or webinars to online audiences in real-time.
EPG (Electronic Program Guide)
A digital listing of scheduled live and on-demand content, often used in IPTV or OTT platforms to help users plan their viewing.
End Screen (Live Stream End Screen)
A visual section shown at the end of a live stream (especially on YouTube) promoting related content, subscriptions, or CTAs.
Edge Server
A CDN node located geographically close to the user to reduce latency and deliver streaming content faster and more efficiently.
Egress Bandwidth
The amount of data leaving a streaming server to reach viewers. High egress bandwidth is necessary to support many concurrent viewers.
Engagement Rate
A metric that measures how actively viewers interact with a live stream (likes, comments, shares, chat participation, etc.).
Error Rate
The frequency of playback or streaming issues encountered during a live stream—such as buffering, resolution drops, or disconnects.
Elastic Scaling
A cloud computing capability that allows a streaming platform to automatically scale server resources based on viewer demand.
Embed Code
A snippet of HTML or JavaScript that lets you insert a live stream player onto a third-party website or blog.
End-to-End Streaming Solution
A comprehensive platform or service that covers the full process of live streaming—from capture and encoding to delivery and analytics.
Eye-Level Framing
A camera placement technique where the camera is aligned with the viewer’s eyes to create a natural and engaging live stream perspective.
External Microphone
A device used to capture better quality audio during live streams compared to built-in microphones found on webcams or mobile devices.
Enterprise Live Streaming
High-quality, secure, and scalable live streaming solutions tailored for corporate use cases such as internal town halls, product launches, or training.
Encoding Preset
A predefined configuration in encoder software (e.g., “fast,” “medium,” “slow”) that balances encoding speed and video quality.
Edge Computing (in Streaming)
Processing live stream data closer to the viewer’s location (at the network edge) to reduce latency and improve performance.
Event Monetization
Strategies to generate revenue from live-streamed events—such as pay-per-view access, ticketing, sponsorships, or integrated e-commerce.
Event Analytics
The data collected from a specific live-streamed event, such as peak viewership, average watch time, geographic distribution, and engagement trends.
Live Streaming Glossary – Letter F
Frame Rate (FPS – Frames Per Second)
The number of individual video frames displayed per second in a live stream. Common frame rates include 24, 30, and 60 FPS. Higher frame rates result in smoother motion.
Full HD (FHD)
A video resolution of 1920×1080 pixels. It’s a standard for high-quality streaming and widely used across platforms.
Frame Drop
Occurs when the streaming system fails to render or transmit all video frames, usually due to hardware limitations or network issues—resulting in choppy playback.
Facebook Live
A popular live streaming platform offered by Meta, allowing individuals, creators, and brands to stream video in real time to followers on Facebook.
Fallback Stream
A backup or alternate live stream used if the main stream fails. Fallbacks help ensure uninterrupted viewing experiences.
Firewall
A network security system that can block or permit data traffic. If not properly configured, firewalls can block ports needed for live streaming.
Feed (Live Feed)
The audio and/or video source being transmitted in real time from a camera or encoder to a live streaming platform.
Flash Media Live Encoder (FMLE)
An older encoding tool by Adobe for live streaming, now largely deprecated and replaced by newer software like OBS and vMix.
Fragmented MP4 (fMP4)
A container format used for adaptive streaming (like MPEG-DASH), allowing better delivery of video content by splitting it into small fragments.
Fast Start
A streaming optimization that allows playback to begin immediately while the rest of the content continues to buffer in the background.
Front-Facing Camera
The camera on the front of a smartphone or device, often used for casual or selfie-style live streams.
Frame Interpolation
A technique where additional frames are generated between existing ones to create smoother motion, sometimes used in post-processing or playback features.
Follower Notifications
Alerts sent to subscribers/followers when a streamer goes live, helping increase viewer engagement and attendance.
Freeware Streaming Software
Streaming applications like OBS Studio that are freely available and used by beginners and professionals alike.
Facecam
A small webcam overlay, usually in the corner of a live stream, showing the streamer’s face—commonly used in gaming and reaction streams.
First-Mile Delivery
Refers to the transmission of a live stream from the origin (broadcaster) to the streaming server or CDN. Ensuring strong first-mile quality is critical for stream stability.
Footage (Live Footage)
The raw video being captured and broadcast in real-time during a live event or stream.
Frequency Response
The range of audio frequencies that a microphone or audio device can capture or reproduce. Affects how sound is perceived in a stream.
Fixed Bitrate Streaming
A streaming method where the bitrate remains constant throughout the stream. Easier to manage but less adaptive to varying internet conditions.
Follow Button
A user interface element that allows viewers to follow a streamer or channel to get notified about future live sessions.
Filter (Video Filter)
Visual effects or enhancements applied to live video, such as color correction, blur, sharpening, or fun effects like facial animations.
Frame Sync
A process that ensures multiple video sources or cameras stay aligned in timing during multi-camera live production.
Flash Streaming
A legacy method of video streaming using Adobe Flash technology. Now largely obsolete due to modern HTML5-based streaming methods.
Feedback Loop (in Streaming)
An audio issue where sound from speakers is picked up by the microphone and re-amplified, causing a loud squeal or echo.
Fan Engagement Tools
Interactive features like polls, Q&A, giveaways, and live chats used to increase viewer participation during live streams.
Live Streaming Glossary – Letter G
Geo-blocking
A method of restricting access to a live stream based on the viewer’s geographic location. Commonly used for content licensing, regional exclusivity, or compliance.
Green Screen (Chroma Key)
A visual effects technique where a solid green (or blue) background is replaced with another image or video during live streaming. Used for virtual sets or branded backgrounds.
Gigabit Ethernet
A high-speed wired internet connection capable of supporting up to 1 Gbps. Preferred for high-quality, low-latency live streaming setups.
Graphics Overlay
On-screen visuals such as logos, lower thirds, titles, or animations added to a live stream to enhance branding or presentation.
Game Streaming
Broadcasting gameplay in real time, often including a facecam and live commentary. Platforms like Twitch, YouTube Gaming, and Facebook Gaming are popular for this.
Gain (Audio Gain)
The input level of audio before it reaches the output or amplifier. Adjusting gain properly is essential to prevent distortion or overly quiet sound.
GOP (Group of Pictures)
A collection of successive video frames coded together. Optimizing GOP settings can impact stream quality and compression efficiency.
Google Live Stream
Live streaming tools provided through Google platforms, including YouTube Live and Google Meet’s live stream mode for G Suite users.
GPU Encoding (Hardware Encoding)
Video encoding performed using a computer’s Graphics Processing Unit (GPU), often faster and more efficient than CPU encoding.
Guest Streamer
A secondary individual joining a primary live stream remotely. Often used in interviews, panels, or co-hosted content formats.
Go Live
The action of starting a live broadcast on a streaming platform. Often includes a countdown, transition screen, or preview before officially starting.
Gated Content
Live streaming content that requires user action before access—such as registration, payment, or login. Often used for webinars or premium events.
Grid View
A visual layout during multi-participant streams (e.g., virtual meetings) that shows all speakers in equally-sized tiles on screen.
Gimbal
A stabilizing device used to keep a camera steady during movement, ideal for mobile live streams or on-the-go broadcasting.
Granular Analytics
In-depth viewer data including metrics like viewer drop-off times, heatmaps, engagement segments, and device types.
Game Capture Card
A specialized device used to capture gameplay from a console or PC to be streamed or recorded with high quality and low latency.
Group Chat (Live Group Chat)
A real-time messaging feature that allows all viewers of a live stream to communicate and interact, often moderated by the host or bots.
Gigabyte (GB)
A unit of data storage. Live streaming can consume several gigabytes of data per hour depending on bitrate and resolution.
Graphics Processor (GPU)
A dedicated processor designed to render visual data. GPUs are crucial in encoding high-resolution streams and managing overlays or effects.
Guest Integration (Remote Guest Feature)
A function in streaming software (e.g., StreamYard, Restream, Riverside) that allows remote users to join a live stream via link, webcam, and mic.
Live Streaming Glossary – Letter H
H.264
A widely used video compression standard for streaming. Balances high-quality video with efficient file sizes and bandwidth usage.
H.265 (HEVC – High Efficiency Video Coding)
An advanced video compression standard offering better quality at lower bitrates than H.264, though requiring more processing power.
Hardware Encoder
A physical device (e.g., Teradek, LiveU) that converts video and audio into a streamable format. Preferred for professional, high-stability broadcasts.
HTML5 Player
A modern video player used in browsers that supports live streaming without requiring plugins like Flash. Now the standard in web-based streaming.
High Definition (HD)
Refers to video resolutions of 720p and above. Most live streams today are in HD (720p, 1080p, or Full HD).
Hotspot (Mobile Hotspot)
A mobile internet connection used for streaming in locations without fixed broadband. Useful for on-the-go or field-based live streaming.
HLS (HTTP Live Streaming)
A protocol developed by Apple that breaks streams into small chunks and delivers them over HTTP. It supports adaptive bitrate streaming and is widely used.
Host (Stream Host)
The person or entity conducting the live stream. A host may also refer to someone facilitating or narrating an event, webinar, or show.
Hybrid Event
A combination of live in-person and virtual (online) participation, where events are streamed to digital audiences in real time.
Hardware Switcher
A device used to switch between multiple video inputs (e.g., cameras, slides) in a live stream production environment.
Hyperlink Overlay
A clickable link added to a live video (where supported) that leads to external content, product pages, or forms. Common in webinars and shoppable streams.
Highlight Reel
A curated collection of key moments from a live stream, often edited and shared as shorter on-demand content.
High Frame Rate (HFR)
Streaming video at frame rates higher than the standard 30 FPS (e.g., 60 or 120 FPS). Used in sports and gaming streams for smoother visuals.
Handshake Protocol
A process between devices to establish a connection before streaming data. Important for secure and uninterrupted stream delivery.
Haptic Feedback
Vibrations or tactile feedback sent to viewers’ devices during interactive live streams (e.g., gaming or AR experiences).
Highlight Clipping
A feature in live streaming software or platforms that allows users or moderators to create instant highlight clips during a live broadcast.
HEVC (High Efficiency Video Coding)
Another name for H.265, offering better compression efficiency than H.264. Preferred for high-resolution streaming such as 4K.
Home Studio
A personal setup optimized for streaming from home, often including lighting, green screen, microphone, webcam, and a streaming PC.
Hosting Service (Streaming Hosting)
A platform or provider that stores and distributes live stream content—e.g., Vimeo Live, Wowza, or YouTube.
High Latency Streaming
Streaming with significant delay (15–30+ seconds), often due to protocol or buffering. Acceptable for non-interactive events.
Hybrid CDN (Content Delivery Network)
A streaming delivery system that combines private (proprietary) and public CDNs to optimize delivery, speed, and redundancy.
Hashtag Integration
The ability to feature or highlight social media hashtags in live streams, often used in branded campaigns or interactive shows.
Heatmap (Engagement Heatmap)
A visual representation of viewer engagement throughout a stream, showing which parts received the most attention.
Hosting Another Streamer
On platforms like Twitch, this refers to sharing another streamer’s live content on your channel while you’re offline, boosting exposure.
Live Streaming Glossary – Letter I
IP Camera (Internet Protocol Camera)
A digital video camera that transmits data over a network or internet. Commonly used for surveillance and also adapted for live streaming purposes.
Iframe Embed
An HTML element used to embed live streams or video players within web pages. It allows seamless integration of third-party content.
Input Source
Any device providing video or audio signal to a streaming setup, such as cameras, microphones, screens, or media players.
ISO Recording (Isolated Recording)
Capturing separate audio/video feeds for each source (e.g., each camera or microphone) during a live stream for post-production editing.
Internet Speed Test
A tool to evaluate upload and download speeds, essential before going live to ensure sufficient bandwidth for high-quality streaming.
Interactive Streaming
A live stream format that includes real-time viewer interactions such as live polls, Q&A, clickable overlays, chat responses, and games.
Ingress Point
The server endpoint where a stream is ingested before being processed and delivered to viewers. Also known as a stream entry point.
IRL Streaming (In Real Life Streaming)
Broadcasting real-world, non-gaming content from everyday life—like travel, cooking, or vlogging—often via mobile devices.
Instant Replay
A feature allowing specific moments of a live stream to be replayed in real time, commonly used in sports and game streaming.
Invite Link (Guest Invite Link)
A URL sent to a guest speaker or co-host allowing them to join a live stream remotely via webcam and microphone.
IP Streaming (Internet Protocol Streaming)
Streaming that uses IP-based networks (such as the internet) to transmit live audio and video from source to destination.
Ingest Server
A server that receives and buffers incoming stream data from the broadcaster before forwarding it to a CDN or playback engine.
In-Stream Ads
Advertisements shown before, during, or after a live broadcast—monetization tools used by platforms like YouTube and Facebook.
Impression
A metric that counts the number of times a live stream thumbnail, ad, or promotion is displayed to viewers, regardless of interaction.
Interactive Overlay
Dynamic graphical elements that allow users to click, vote, or interact during a live stream—commonly used in webinars and virtual events.
Integrated Chat
A chat interface built into the streaming platform or embedded player, enabling real-time viewer communication without leaving the stream.
Invite-Only Stream
A live stream restricted to selected users who receive access via invitation or unique access link—used in VIP sessions or private events.
IPTV (Internet Protocol Television)
The delivery of television content over IP networks. It includes both live broadcasts and on-demand content streaming.
Image Stabilization
A technology used in cameras to reduce blurring from camera movement—important in mobile or handheld live streaming scenarios.
Identity Verification
Security measures (e.g., logins, OTPs, passwords) used to authenticate viewers before allowing access to restricted or paid streams.
Integrated Streaming Platform
A solution that offers broadcasting, editing, monetization, and analytics in one system—such as Restream, StreamYard, or Vimeo Live.
Instant Live Share
A feature allowing users to immediately share an ongoing live stream on social platforms, increasing its reach and discoverability.
Inbound Connection
The connection made from a broadcaster’s device to the streaming server. It needs to be stable for a smooth broadcast experience.
Image Overlay
A static image placed over the live stream, often used for branding (logos, sponsor ads) or call-to-action graphics.
Live Streaming Glossary – Letter J
Jitter
Variation in packet arrival times during data transmission. In live streaming, high jitter can cause audio/video desynchronization or buffering issues.
JPEG (Joint Photographic Experts Group)
A common image format used for overlays, thumbnails, and visual assets in live streams. Not suitable for motion video but used in branding.
Jump Cut
A sudden transition in video that skips time or motion. In live streaming, it may occur due to connection loss or editing in replays/highlights.
JavaScript Embed
A type of embed code using JavaScript that allows advanced customization and integration of live streaming players into websites.
Just Chatting (Category)
A non-gaming category on platforms like Twitch where streamers engage directly with viewers, often in a casual or conversational format.
JPEG 2000
A high-quality image compression standard sometimes used in professional broadcasting environments for low-latency, lossless video transport.
JPG Overlay
A static image file (JPG format) used as a visual layer in a live stream—for logos, banners, or announcements.
Join Link (Stream Guest Link)
A URL or invitation code sent to remote participants enabling them to join a live broadcast via browser or app.
Jam Session Stream
A type of live stream used by musicians and performers where they improvise or collaborate in real-time, often with audience input.
JSON (JavaScript Object Notation)
A lightweight data format often used for transmitting data between a server and web app. In streaming, it’s used for chat bots, alerts, and analytics.
Jumbotron View
A display mode or layout where one participant or stream element is magnified to full screen, often used during events or keynote broadcasts.
Jitter Buffer
A temporary data buffer that compensates for jitter in data transmission, helping to smooth audio/video playback in live streams.
Java-based Streaming Solutions
Older or enterprise-grade streaming platforms built with Java, allowing scalable media delivery and back-end control.
Judder
A visual stutter or jerkiness caused by frame rate mismatches or irregular video playback timing—can affect viewer experience.
Joint Broadcast
A live stream featuring multiple streamers or brands co-hosting a single event or production across platforms or channels.
Live Streaming Glossary – Letter K
Kilobits per Second (Kbps)
A measurement of data transfer rate used in streaming to define the bitrate of audio and video. For example, 1500 Kbps means 1,500 kilobits of data are streamed every second.
Keyframe
A complete video frame used in compression algorithms. In streaming, keyframes serve as reference points for reconstructing other frames and are essential for smooth seeking and adaptive streaming.
Keyframe Interval
The frequency at which keyframes appear in a video stream (e.g., every 2 seconds). Proper keyframe intervals improve stream quality and compatibility with adaptive bitrate protocols.
Kill Switch
A control feature that allows a broadcaster or moderator to immediately stop a live stream due to emergencies, technical issues, or violations.
Keyboard Shortcuts
Custom or default key combinations used in live streaming software (like OBS, vMix, or Streamlabs) to trigger functions like starting/stopping the stream, switching scenes, or muting audio.
Kbps (Kilobits per Second)
A unit of bitrate used to measure streaming quality. Higher Kbps generally means better audio or video quality but requires more bandwidth.
Kaltura
An open-source video platform offering cloud-based and on-premise video streaming solutions. Used by enterprises, education, and media companies for live and on-demand video.
Key Light
The primary lighting source in a live streaming setup used to illuminate the subject’s face, improving visibility and professionalism on camera.
Kit (Streaming Kit)
A bundle of equipment used for live streaming, typically including a camera, microphone, lighting, tripod, and sometimes a capture card or encoder.
KPI (Key Performance Indicator)
A measurable value used to track the success of a live stream—such as viewer count, watch time, engagement rate, or stream uptime.
Kick (Streaming Platform)
A relatively new live streaming platform alternative to Twitch, gaining popularity in the gaming and entertainment space.
Knowledge Base (Support/Help Center)
A library of articles, tutorials, and FAQs provided by streaming platforms or tools to assist users in troubleshooting and improving their live streams.
Knockout Stream (KO Stream)
A live streaming format for combat sports like boxing or MMA where real-time matches are streamed, often with high audience interaction and PPV models.
Live Streaming Glossary – Letter L
Latency
The time delay between the capture of an event and its display to viewers. Lower latency results in more real-time interaction during a stream.
Live Stream
A broadcast of video and/or audio content in real time over the internet. Used in gaming, events, webinars, product launches, and more.
Live Chat
A real-time text communication feature allowing viewers to interact with the host and each other during a stream. Common across YouTube Live, Twitch, and Facebook Live.
Live Encoder
A tool (hardware or software) used to convert audio/video signals into a streamable format in real time. Examples: OBS Studio, Wirecast, vMix.
Live-to-VOD (Live to Video on Demand)
A workflow where a live stream is automatically saved and made available as an on-demand video for future playback.
Lower Thirds
A graphic overlay (usually at the bottom third of the screen) used to display titles, names, branding, or calls to action during a stream.
Live Viewer Count
A real-time metric showing how many viewers are watching the live stream at any given moment.
Looping Video
A pre-recorded video that plays continuously in a loop, often used during countdowns, breaks, or to simulate live content.
Live Event
Any real-time broadcast of a specific event (conference, concert, sports, etc.), typically scheduled and promoted in advance.
Live Polling
Interactive feature allowing hosts to run polls during the stream and receive real-time feedback from viewers.
Live Streaming Platform
A service that enables users to broadcast and distribute live video, such as YouTube Live, Twitch, Facebook Live, Vimeo, or StreamYard.
Live Production Switcher
A tool (hardware or software) used to switch between multiple video sources, add graphics, or control scenes during a live stream.
Live Transcoding
The real-time conversion of a video stream into multiple resolutions and bitrates for adaptive streaming and broader device compatibility.
Live Streaming Software
Applications like OBS Studio, Streamlabs, or XSplit used to capture, encode, and manage live broadcasts.
Live Feed
The raw input from a camera or microphone being sent to the live stream. It can also refer to satellite feeds used in large-scale broadcasts.
Live Q&A
An interactive session where viewers submit questions in real-time for the host or guest to answer live.
Live Reactions (Emotes/Reactions)
Viewer-sent emojis or reactions that appear on screen during the live stream, increasing engagement and feedback.
Local Recording
Saving a high-quality version of the stream directly to a local device, independent of the stream quality seen by online viewers.
Live Captioning
Real-time text display of spoken words during a live stream, either via human transcription or AI-generated closed captions.
Livestream Studio
A professional broadcasting software by Vimeo (formerly Livestream) that enables multi-camera production, streaming, and graphics management.
Live Broadcast Delay
A deliberate time gap (e.g., 30 seconds) between the actual event and its broadcast to allow for content moderation or censorship.
Live Integration Tools
Third-party tools or widgets integrated into streams (e.g., alerts, donation popups, chatbots) to enhance viewer experience.
Live Uplink
The internet connection used to send live video from the source to the cloud or streaming platform—critical for remote and outdoor broadcasts.
Live Schedule
A timetable of upcoming live events, often displayed on a channel’s page or website to inform viewers when to tune in.
Live Metadata
Real-time information attached to a stream (e.g., title, category, tags) that helps platforms organize and recommend content.
Live Stream Key
A unique code used by streaming software to authenticate and connect to a specific broadcast session on a platform.
Live Event Management System
A backend system for organizing, scheduling, monitoring, and controlling large-scale or recurring live streaming events.
Live Audience Interaction
Any element that allows viewers to influence or engage with a live broadcast, including chat, voting, and on-screen contributions.
Live Streaming Glossary – Letter M
Multistreaming (Simulcasting)
Broadcasting a live stream to multiple platforms (e.g., YouTube, Facebook, Twitch) at the same time using tools like Restream or StreamYard.
Moderator
A person responsible for managing the live chat during a stream—filtering spam, removing inappropriate comments, and assisting viewers.
Mic (Microphone)
An audio input device that captures the speaker’s voice. External mics are preferred for higher-quality sound in professional streams.
Mixing Console (Audio Mixer)
A hardware or software tool that blends multiple audio sources (e.g., voice, music, sound effects) for live broadcast production.
Metadata
Descriptive information about a live stream, such as title, description, tags, category, language, and more—used to help discoverability.
Mobile Streaming
Live streaming from a smartphone or tablet using apps or built-in social media tools (e.g., Facebook Live, Instagram Live, TikTok).
Multicam Streaming
A broadcast that switches between multiple camera angles for a more dynamic, TV-like live experience. Used in concerts, events, and webinars.
Monetization
The process of earning revenue from a live stream, through ads, donations, subscriptions, pay-per-view, or product placements.
Motion Graphics
Animated visuals (titles, transitions, overlays) added during a live stream to enhance visual engagement.
Mute
The act of disabling audio from a microphone or video source. Used by moderators or hosts when managing disruptions or side noise.
Mirror Stream
A duplicate of a live stream displayed on another screen, site, or platform, often used for archiving or audience segmentation.
Media Server
A server responsible for receiving, processing, and delivering live stream content to viewers via protocols like RTMP, HLS, or DASH.
Multiview
A layout in streaming software or hardware that displays multiple video feeds on one screen for monitoring or switching.
Mix-minus Setup
An audio configuration used during live remote interviews to prevent the speaker from hearing their own voice echoed back.
Mobile Data Streaming
Using a 3G/4G/5G data plan for live streaming in places without Wi-Fi or broadband. May require bitrate optimization.
Member-Only Stream
A restricted live stream accessible only to subscribed or paid members on platforms like YouTube, Patreon, or Facebook.
Motion Blur
A visual distortion that happens when fast movement is not captured smoothly. Adjusting frame rate and shutter speed can reduce this in live video.
Multilanguage Streaming
A setup that provides real-time interpretation or subtitle options in different languages for global audiences.
Mid-roll Ad
An advertisement inserted in the middle of a live stream or on-demand video. Platforms like Facebook and YouTube enable monetization this way.
Mic Delay (Audio Delay)
A synchronization technique that delays the microphone input to match the video feed, avoiding lipsync issues.
Mobile Encoder
A dedicated app or hardware device that encodes and transmits live video from mobile devices, such as Larix Broadcaster or LiveU Solo.
Media Asset
Any digital content element used during a live stream, including images, videos, overlays, intro/outro animations, and sound clips.
Music License (Streaming License)
Legal permission required to use copyrighted music during a live broadcast to avoid takedowns or demonetization.
Monitoring Feed
A live preview of the stream used by producers or hosts to oversee the audio/video quality and transitions.
Manual Scene Switch
Switching between different video layouts or sources manually using software or hardware controls during a live stream.
Minimum Viable Bitrate
The lowest acceptable bitrate needed to maintain stream quality without constant buffering or visual degradation.
Microstreaming
Very short live streams (often under 5 minutes) designed for quick engagement, product teasers, or social media interaction.
Multitrack Audio
Recording separate audio channels during a stream (e.g., host, guest, music), which allows detailed editing in post-production.
Member Milestones (Streaming)
Special shout-outs or on-screen alerts triggered when a member or subscriber hits a certain duration or achievement.
Live Streaming Glossary – Letter N
Network Bandwidth
The maximum amount of data that can be transmitted over a network. In live streaming, sufficient upload bandwidth is essential for stable and high-quality streams.
NLE (Non-Linear Editor)
Video editing software like Adobe Premiere Pro or Final Cut Pro that allows editors to manipulate audio/video files out of chronological order. Useful for editing post-stream highlight reels.
Noise Reduction
A feature or technique that removes or minimizes background noise from a microphone input during live streams to improve audio clarity.
NDI (Network Device Interface)
A protocol by NewTek that allows video and audio sources to be shared across a local network, enabling wireless or cable-free streaming setups between devices and software.
Notification (Live Stream Notification)
Alerts sent to subscribers/followers to inform them when a channel goes live. Crucial for maximizing viewer turnout.
Network Latency
The time it takes for data to travel from the source to its destination. High latency can lead to delayed audio/video or lag in interactions.
Native Streaming
Broadcasting directly within a platform’s own system without third-party tools—e.g., going live directly from the Facebook app or YouTube Studio.
Name Tag Overlay
A lower-third graphic element that displays the speaker’s name, designation, or social handle during a live stream.
Noise Gate
An audio filter that cuts off sound input below a certain volume threshold, helping eliminate low-level background noise during streaming.
Network Congestion
When a network is overloaded with data traffic, leading to potential buffering, quality drops, or dropped frames in a live stream.
Narration Track
An audio voiceover added during live presentations, gaming, or tutorials. Used to explain what’s happening on-screen in real-time.
Non-Public Stream
A live stream that is not accessible to the general public. Access is limited via invite, password, or private/unlisted links.
Network Protocol
A set of rules for data transmission. In streaming, common protocols include RTMP, HLS, SRT, and WebRTC.
Noise Floor
The base level of background noise in an audio signal. Managing the noise floor is critical for producing clean audio in professional live streams.
Notification Bell (YouTube)
A YouTube-specific tool where users can opt-in for instant alerts when a channel goes live or uploads new content.
NAT (Network Address Translation)
A networking process used in routers to translate private IP addresses to a public IP. Improper NAT configurations can block or limit live stream connectivity.
Network Stability
The consistency of your internet connection during a live stream. Unstable networks can cause buffering, stream crashes, and poor user experience.
Niche Streaming
Live streaming targeted toward a very specific audience or subject matter (e.g., chess tutorials, book reviews, niche sports, etc.).
Number of Concurrent Streams
The total number of live broadcasts happening simultaneously on a platform or from a single broadcaster setup.
News Ticker (Live Ticker)
A horizontal scrolling text bar typically used during live news or event streams to display updates, scores, headlines, or announcements.
Noise Cancellation
A feature in microphones or software that suppresses unwanted ambient sounds, ensuring a clearer speaking voice during live transmission.
Name Overlay Template
A pre-designed graphic used to display speaker names in consistent style and format across multiple streams or segments.
Networked Audio
Audio transmitted across devices over a local or cloud-based network using protocols like Dante or NDI for flexible live production.
Live Streaming Glossary – Letter O
OBS Studio (Open Broadcaster Software)
A free, open-source software widely used for live streaming and video recording. Supports scene transitions, multiple sources, and plugin integrations.
Overlay
Visual elements (images, text, animations) placed over the video feed during a stream—used for branding, alerts, lower thirds, or information display.
On-Demand Streaming (VOD)
Recorded versions of live streams or pre-produced videos that viewers can watch at any time after the live broadcast has ended.
Output Resolution
The final resolution in which the live stream is delivered to viewers (e.g., 720p, 1080p). Often determined by encoding settings and platform capabilities.
Output Bitrate
The amount of data transmitted per second during a live stream. A key setting in streaming software that affects video quality and bandwidth usage.
On-Screen Display (OSD)
Graphics or information (like timers, scores, or logos) superimposed on the video feed during a live stream.
Onboarding (Live Stream Onboarding)
The process of helping new streamers or guests become familiar with streaming tools, controls, and participation processes before going live.
Offline Screen
A placeholder image or message shown when the live stream is not active, informing viewers that the channel is currently offline.
On-Camera Presence
The visual confidence, body language, and engagement shown by the host or presenter during a live stream. Strong presence boosts viewer retention.
Output Device
The hardware or virtual system where the stream is displayed, recorded, or sent. Examples: streaming platforms, monitors, external drives.
On-Air Indicator
A visual cue, light, or graphic that indicates the stream is live and being broadcast to the audience.
One-to-Many Streaming
A broadcasting model where a single stream is sent from the host to many viewers simultaneously—standard for public live streams.
On-Stream Notifications
Pop-up graphics during a live stream that show when someone subscribes, donates, or interacts—used on Twitch, YouTube, etc.
On-Location Streaming
Broadcasting live from physical events or outdoor environments using mobile setups, often requiring mobile hotspots or bonded connections.
Optimized Stream Settings
Pre-configured streaming parameters (resolution, bitrate, audio sample rate) tailored to a platform’s recommended specs for best quality.
One-Click Streaming
A user-friendly feature allowing streamers to go live instantly with minimal setup—common in mobile apps and simplified web platforms.
Orientation (Portrait/Landscape)
The direction of the video feed. Landscape is standard for desktop platforms, while portrait is used in mobile-first platforms like Instagram Live.
OBS Plugin
An extension or add-on that enhances OBS functionality—e.g., NDI support, replay buffer, virtual camera, and transitions.
On-Demand Monetization
Revenue earned from recorded live streams (VOD) through ads, subscriptions, or pay-per-view access after the live broadcast.
Outage (Streaming Outage)
A disruption in the streaming process caused by internet failure, server downtime, or platform issues—may cause loss of viewers or incomplete broadcasts.
On-Site Encoder
A physical encoder device located at the event venue, converting camera/audio feeds into a live stream ready for online distribution.
Open Captioning
Subtitles that are permanently embedded into the video stream and cannot be turned off by the viewer.
On-Demand Clipping
The ability for users or moderators to create highlight clips from a live stream while it’s ongoing or after it ends.
Output Format
The file type or protocol in which the live stream is encoded and transmitted (e.g., MP4, FLV, RTMP, HLS).
Onboard Camera
A built-in camera found on devices such as laptops, tablets, or mobile phones, often used for quick or casual live streams.
Live Streaming Glossary – Letter P
Platform (Streaming Platform)
A service that hosts and distributes live video content to viewers. Popular platforms include YouTube Live, Twitch, Facebook Live, LinkedIn Live, and Vimeo.
Picture-in-Picture (PiP)
A layout where one video feed (usually a webcam) appears in a small window over the main content. Common in gaming and tutorial streams.
Pre-roll Ad
An advertisement that plays before the live stream begins. Used for monetization on platforms like YouTube and Facebook.
Post-roll Ad
An advertisement that appears after the live stream ends, often used in monetizing recorded versions of live broadcasts.
Pay-Per-View (PPV)
A monetization model where viewers must pay a fee to access a live event. Common in sports, concerts, and webinars.
Private Stream
A stream that is only viewable by selected individuals or via invite-only access—used for internal meetings, client demos, or premium events.
Public Stream
A live stream that is open and accessible to anyone, usually indexed by search engines and promoted on public platforms.
Production Switcher
A device or software used to switch between different video and audio sources in real time during a live stream.
Presenter View
A setup or feature where the host can see notes, slides, chat, or other tools while presenting a live stream (common in webinars).
Post-Processing
Editing or enhancing a stream recording after it ends—used for trimming, adding captions, improving audio, or repurposing content.
Pre-Stream Checklist
A list of technical and creative steps to complete before going live, such as testing audio, checking lighting, and confirming stream keys.
Port Forwarding
A networking setup that opens specific ports on a router to allow streaming software to connect with external services.
Preview Screen
A screen in your streaming software showing what will appear next in the live broadcast before it is transitioned to the main output.
Presentation Mode
A layout or scene optimized for showing slides or screen shares during a live stream, often with minimized video of the presenter.
Playback Buffer
A short preloaded section of a stream stored on the viewer’s device to ensure smooth playback and reduce latency or interruptions.
Packet Loss
A networking issue where data packets are lost during transmission, often causing buffering, video glitches, or dropped frames.
Peer-to-Peer (P2P) Streaming
A decentralized streaming approach where content is distributed directly between users, reducing server load and latency.
Post-Event Streaming
Broadcasting or replaying the recorded version of a live event after it has concluded—useful for audiences in different time zones.
Periscope
A former Twitter-owned mobile app for live video streaming, now integrated into Twitter’s own features.
Picture Quality
The overall visual clarity of a live stream, influenced by resolution, bitrate, lighting, and compression.
Pixelation
A visual artifact that occurs when resolution or bitrate is too low, causing the video to appear blocky or blurry.
Program Feed
The final mixed audio and video output that is streamed to the audience. It’s the version viewers see and hear.
Protocol
A standardized method of transmitting data over the internet. Common live streaming protocols include RTMP, HLS, SRT, and WebRTC.
Pre-recorded Live
A previously recorded video that is streamed as if it were live. Often used to ensure quality while maintaining the appearance of a live event.
Presentation Slide Integration
The inclusion of PowerPoint or PDF slides within a live stream, often used in educational or corporate webinars.
Plug-in (Streaming Plugin)
A software add-on that extends the functionality of streaming tools (e.g., OBS plugins for transitions, virtual camera, NDI support).
Preview & Program Workflow
A dual-output method where one screen shows what’s about to go live (preview), and the other shows what’s currently live (program).
Pixel Density (PPI)
Refers to the number of pixels per inch of display. Higher density means sharper images, especially important for high-resolution streams.
Peer Review Streaming
A use case where live video is used for collaborative review of work or creative projects—common in education and design.
Pre-Show Countdown
A timer or animation displayed before the stream begins to prepare the audience and signal upcoming content.
Privacy Settings
Controls that determine who can view the stream. Options typically include public, unlisted, private, or password-protected.
Performance Metrics
Data collected during a stream such as view count, engagement rate, average watch time, and drop-off points.
Live Streaming Glossary – Letter Q
Quality of Service (QoS)
A networking concept that ensures prioritized delivery of data for applications like live streaming. QoS settings can help reduce buffering and maintain stream quality on congested networks.
Quality of Experience (QoE)
A user-centric measure of how well a live stream is received. Includes viewer satisfaction with video clarity, buffering, latency, and audio sync.
Quick Start Streaming
A feature offered by some platforms and tools allowing users to begin a stream with default settings instantly, without configuring detailed parameters.
Q&A (Questions and Answers)
A common interactive session during live webinars or broadcasts where viewers can ask questions in real-time and the host or guests answer live.
Quad Stream Setup
A multi-camera setup involving four video sources streamed simultaneously or switched between. Common in professional live event production.
Quick Edit Mode
A simplified video editing interface available on some platforms (like YouTube) for making fast adjustments to live stream recordings, such as trimming or adding titles.
Quicksync (Intel Quick Sync Video)
A hardware-based video encoding/decoding feature in Intel processors, used to offload streaming tasks from the CPU, improving performance.
Quiet On Set
A behind-the-scenes cue in live production environments to minimize background noise right before going live.
Quad-Split Monitor
A video monitor that displays four different video feeds on the same screen, useful in multi-camera live stream production control rooms.
Quality Presets
Predefined settings in streaming software (e.g., “low,” “medium,” “high,” “ultrafast”) that balance encoding speed and output quality.
Queue (Live Chat Queue)
A list or order of comments/questions submitted during a live stream, often used in moderated Q&A sessions to ensure fair and organized interaction.
Quarantine Stream (Quaranstream)
A term popularized during the COVID-19 pandemic for live streams created during lockdowns—often informal, home-based, and focused on virtual connection.
Quirky Streams
A content style characterized by unique, humorous, or unconventional presentation—gaining traction on platforms like Twitch, TikTok Live, and Instagram Live.
Quick Access Panel
A simplified control interface available in many streaming tools, allowing rapid access to essential functions like muting, scene switching, or going live.
Quiet Streaming Mode
A feature or setup where background noise is minimized using AI noise suppression or hardware filters, improving voice clarity in quiet settings.
Live Streaming Glossary – Letter R
RTMP (Real-Time Messaging Protocol)
A widely used protocol for transmitting audio, video, and data over the internet between a broadcaster and streaming platform. Still a standard for ingestion, even though playback is often via HLS.
Resolution
The dimensions of a video stream, such as 720p (1280×720) or 1080p (1920×1080). Higher resolution offers better visual quality but requires more bandwidth.
Replay Buffer
A feature in streaming software (like OBS) that temporarily records the last few minutes of a stream, allowing for instant replay or clipping key moments.
Restreaming
The process of broadcasting a live stream to multiple platforms simultaneously (e.g., Facebook + YouTube + LinkedIn) using services like Restream.io or StreamYard.
Remote Guest
A participant who joins a live stream from a different physical location via webcam and microphone. Tools like StreamYard, vMix Call, and Riverside support this.
Recording (Local or Cloud)
Capturing the live stream video and audio for post-event use, such as editing, repurposing, or uploading as video-on-demand (VOD).
Rendering
The process of compiling video, overlays, and effects into the final visual output during or after streaming. Real-time rendering is critical for performance.
Resolution Switching
A viewer’s ability to change video resolution during playback (e.g., from 1080p to 480p) based on internet speed or device performance.
RTP (Real-Time Transport Protocol)
A protocol used in audio and video streaming, particularly in VoIP and low-latency environments. Works alongside RTCP for session control.
RTSP (Real-Time Streaming Protocol)
A protocol used for establishing and controlling media sessions between endpoints. Commonly used for IP cameras and private streaming setups.
Redundant Streaming (Backup Stream)
The use of a second stream running simultaneously to the main stream as a failover in case of technical issues or outages.
Resolution Downscaling
Lowering the resolution of a video source to reduce bitrate or match audience capabilities (e.g., converting 4K input to 1080p output).
Run of Show (ROS)
A detailed schedule outlining what happens at each point during a live stream event—scenes, transitions, presenters, media cues, etc.
Remote Streaming Kit
A portable live streaming setup including camera, mic, encoder, and hotspot, designed for field reporting, vlogging, or mobile production.
Real-Time Engagement (RTE)
Technologies enabling low-latency interaction between hosts and viewers during live events—used in education, gaming, and webinars.
Recording Indicator
A visual or system cue showing that the live stream is being recorded—either on-screen or within the broadcasting software.
Room Code (for Streaming Access)
A secure code used to enter private streams, online classes, or virtual meetings with restricted viewer access.
RTMPS (RTMP Secure)
A secure version of RTMP that uses SSL encryption, often required by platforms like Facebook Live for stream ingestion.
Reaction Stream
A type of stream where the host reacts to videos, content, news, or live events, often involving facecam and spontaneous commentary.
Resource Usage (CPU/GPU/RAM)
Metrics used to track how much system performance is being used during live streaming—critical for avoiding lag or dropped frames.
Round-Trip Time (RTT)
The time it takes for a data packet to go from the sender to the receiver and back. A key indicator of latency in streaming networks.
Replay Highlights
Key moments clipped and replayed during or after the stream—often used in sports, gaming, and recap-style content.
Run Time (Stream Duration)
The total time a stream is live. Used for reporting, analytics, or event scheduling.
Revenue Stream (Monetization Channel)
The source of income generated by a stream, including ads, tips, super chats, sponsorships, subscriptions, or merchandise sales.
Remote Desktop Streaming
Sharing a remote desktop interface during a stream, commonly used in IT demos, coding tutorials, and customer support sessions.
Live Streaming Glossary – Letter S
Stream Key
A unique alphanumeric code used to authenticate a live stream between your streaming software and the destination platform (e.g., YouTube, Facebook).
Streaming Protocol
A set of rules for delivering live audio/video over the internet. Common ones include RTMP, HLS, DASH, WebRTC, and SRT.
Scene (in Streaming Software)
A collection of sources (camera, overlays, screen share, etc.) arranged together and saved as a layout. Used in tools like OBS for switching between segments.
Source
Any media element used in a live stream—such as a webcam, screen capture, image, browser window, or audio input.
SRT (Secure Reliable Transport)
A streaming protocol that ensures secure and low-latency video delivery over unreliable networks. Ideal for remote production and IP-based broadcasting.
Simulcasting (Multistreaming)
Broadcasting a live stream to multiple platforms at the same time. Tools like Restream and StreamYard enable this easily.
Stream Latency
The time delay between the moment something happens live and when it appears on the viewer’s screen. Key types: low latency, ultra-low latency, and normal latency.
Stream Deck
A customizable control device (e.g., Elgato Stream Deck) used by streamers to trigger actions like scene changes, overlays, and sound effects.
Streaming Bitrate
The rate at which data is transferred from the streamer to the platform. Higher bitrates = better quality but require more bandwidth.
Streaming Server
A server that receives live stream data, processes it, and distributes it to viewers. Examples: Wowza, AWS MediaLive, or local RTMP servers.
Split Screen
A layout that displays multiple video feeds side-by-side on screen, often used for interviews, panels, or co-op streams.
Stream Overlay
A graphic or animated element layered on top of the video feed to add branding, calls to action, chat windows, or alerts.
Streaming Software
Applications like OBS, Streamlabs, vMix, and XSplit used to capture, encode, and transmit live content.
Subscriber Alerts
On-screen visual/audio cues triggered when someone subscribes to a channel—boosting engagement and recognition.
Super Chat
A YouTube feature allowing viewers to pay to highlight their message during a live chat. Common in monetized streams.
Streaming Resolution
The output size of a video, e.g., 720p, 1080p, 4K. Impacts video quality and data requirements.
Stream Schedule
A predefined timetable or calendar of upcoming live broadcasts, used to build audience anticipation and promote consistency.
Soundcheck
A pre-stream audio test to ensure microphones, music, and other audio sources are properly balanced and clear.
Stream Delay (Broadcast Delay)
An intentional delay added to a live stream (e.g., 10–60 seconds) to manage moderation or prevent stream sniping.
Streaming Platform
A service that hosts and distributes live content—examples: YouTube Live, Facebook Live, Instagram Live, Twitch, Vimeo, and TikTok Live.
Subscriber-Only Chat
A chat mode where only channel subscribers can comment during a live broadcast—used to encourage subscriptions and manage spam.
Social Streaming
Broadcasting live content via social media platforms like Facebook, Instagram, YouTube, and Twitter/X.
Scene Transition
The visual effect applied when switching from one scene to another in streaming software (e.g., fade, swipe, stinger).
Stream Health
A diagnostic report provided by streaming platforms that shows real-time performance indicators like bitrate, resolution, and errors.
Soft Launch Stream
A test or low-key live stream intended to check tech, gather early feedback, or preview new content before a full launch.
Screen Capture
A source input that shows your computer or mobile screen—used in tutorials, demos, webinars, and gaming streams.
Shoutout (Live Stream Shoutout)
A personalized message or mention given to a viewer, subscriber, donor, or collaborator during the stream.
Stinger Transition
A custom animation used between scene changes in a stream, often branded for dramatic effect.
Streaming License
A legal license that allows the use of copyrighted content (especially music or films) in a live stream without infringement.
Streaming Analytics
Metrics and data insights related to stream performance—viewers, engagement, peak concurrency, watch time, etc.
Stream Title & Description
Metadata added to live streams to describe the content, attract viewers, and improve discoverability.
Slow Mode
A chat feature that restricts how often viewers can send messages—used to manage high-volume or spam-prone streams.
Subscriber Count
The number of people subscribed to a live streamer’s channel. A key metric for eligibility in monetization and reach.
Stream Restart
The action of stopping and quickly restarting a live stream due to technical issues or platform bugs.
Soundboard
A tool that allows streamers to play preloaded sound effects during a live stream—often used in entertainment and gaming.
Studio Mode (OBS)
A feature in OBS that shows both a preview and program view, allowing streamers to prepare scenes before going live.
Social Alerts
Notifications automatically posted to social media (e.g., Twitter, Discord) when a live stream begins.
Server Ingest URL
The endpoint (URL) used by streaming software to send encoded data to a streaming platform.
Split Audio Tracks
A technique for separating different audio sources (e.g., mic, game audio, music) into individual tracks for better post-production control.
Live Streaming Glossary – Letter T
Thumbnail (Stream Thumbnail)
A static image representing a live stream before it starts. It serves as a visual preview and plays a key role in attracting viewers.
Transcoding
The process of converting a live stream into multiple resolutions and bitrates to enable adaptive streaming (e.g., from 1080p to 720p or 480p).
Title (Stream Title)
The name or headline of a live stream, critical for discoverability and viewer interest. Often optimized with keywords.
Twitch
A leading live streaming platform primarily focused on gaming, but also supports creative, educational, and IRL content.
TCP (Transmission Control Protocol)
A reliable communication protocol used in live streaming when delivery accuracy is prioritized over speed. Less common than UDP in real-time video.
Track (Audio/Video Track)
A single stream of audio or video data. Multi-track recordings allow for separating microphone input, background music, or system audio.
Transition (Scene Transition)
A visual effect applied when switching between different scenes in a live broadcast, such as fade, cut, slide, or stinger.
Test Stream
A non-public or unlisted stream used to check technical setups (audio, video, lighting, overlays) before going live officially.
Tokenized Streaming
A method of securing streams using temporary tokens or URLs to grant time-limited or user-specific access to live content.
Technical Director (TD)
The person responsible for managing all technical aspects of a live stream, including switching scenes, cueing media, and monitoring equipment.
Tally Light
A red or green light on a camera indicating it is live or on-air. Used in multi-camera live productions.
Timeline (Live Timeline)
A chronological bar or indicator showing how long the stream has been live or marking events during the stream (e.g., Q&A, polls).
Twitch Raid
A feature on Twitch that allows a streamer to send their viewers to another channel at the end of their stream to boost engagement.
TikTok Live
TikTok’s live streaming feature allowing creators to broadcast in real-time to followers, with features like gifts, filters, and comment interaction.
Talking Head Stream
A live format where the primary focus is a person speaking directly to the camera—commonly used in vlogs, news, and educational content.
Transmitter
A hardware device that sends live audio and video signals to a receiver or streaming encoder—used in wireless setups and field production.
Tip Jar (Digital Tip Jar)
A virtual feature that allows viewers to financially support streamers in real-time through donations.
Third-Party Streaming App
Any external software used to broadcast to platforms (e.g., OBS, vMix, Streamlabs), offering more customization than native mobile apps.
Telemetry (Streaming Telemetry)
Real-time data collected from the streaming process, such as bitrate, frame rate, dropped frames, and stream health diagnostics.
Two-Factor Authentication (2FA)
A security layer requiring a second form of verification (e.g., SMS, app code) to access streaming platforms and accounts securely.
Title Card
A static graphic shown at the beginning or end of a stream with branding, event title, or key messaging.
Timecode
A numerical representation (HH:MM:SS:FF) of a specific moment in a stream. Used for syncing, editing, and logging events.
Tracking (Audience Tracking)
The process of monitoring viewer behavior during a live stream—such as watch time, drop-off rates, and engagement.
Twitch Emotes
Platform-specific emojis used during Twitch streams for audience interaction and channel branding.
Toggle Switch
A button or shortcut that activates or deactivates a source, overlay, or scene during a live stream.
Text Overlay
Any live or static text displayed over the stream—used for announcements, lower thirds, or instructions.
TikTok Gifting
A monetization feature where viewers send digital gifts during TikTok Live that convert to real income for the creator.
Timer Widget
A visual countdown or stopwatch element embedded into a live stream for tracking event start times or time-limited segments.
Tag (Stream Tag)
Keywords or labels applied to a live stream to improve searchability and help platforms recommend the stream to relevant audiences.
Title Animation
An animated graphic introducing a stream, speaker, or segment, often used in professional productions.
Twitch Bits
A virtual currency on Twitch used by viewers to support streamers through cheers, which are highlighted in chat.
Transmission Rate
The speed at which audio/video data is transferred to the streaming server. Directly tied to the set bitrate.
Turnkey Streaming Solution
A pre-configured streaming system (hardware/software) that allows users to go live with minimal setup or technical know-how.
Trial Stream
A test run broadcast to check technical performance, audience reception, or to experiment with new formats.
Live Streaming Glossary – Letter U
Upload Speed
The rate at which data is sent from a device to the internet. Crucial for live streaming as it determines how much video/audio data can be transmitted in real-time without buffering or dropped frames.
URL (Uniform Resource Locator)
A web address used to access live stream content. Streaming platforms often provide a Stream URL alongside a Stream Key for software configuration.
Unlisted Stream
A stream that doesn’t appear publicly in search results or on a channel but is accessible via a direct link. Ideal for semi-private or invitation-only broadcasts.
UDP (User Datagram Protocol)
A connectionless network protocol used for low-latency live streaming. It’s faster than TCP but lacks error-checking, making it best for real-time applications where speed matters more than perfect delivery.
Uptime
The total amount of time a live stream has been continuously running without interruption. Also used to refer to the operational status of a streaming server.
Unicast Streaming
A one-to-one streaming method where the server sends a unique stream to each viewer. Requires more bandwidth but allows individualized delivery.
Upscaling
The process of increasing a video’s resolution during encoding—for example, from 720p to 1080p. Often used when a source video is lower quality than desired.
User Engagement
The degree to which viewers interact with a live stream through comments, likes, reactions, polls, shares, or donations.
UI (User Interface)
The visual layout and interactive elements of streaming software or platforms that allow broadcasters to manage streams effectively.
UGC (User-Generated Content)
Content created and streamed by viewers or fans, often repurposed by brands or communities as part of audience-driven engagement.
Ultra HD (UHD)
A video resolution higher than Full HD, typically 3840×2160 pixels (4K). Used for high-quality live streaming when bandwidth and hardware allow.
Ultra-Low Latency
A live streaming mode that minimizes delay between broadcast and viewer playback (often under 5 seconds), ideal for real-time interaction.
Unmute
Enabling a previously muted microphone or audio source in a live stream.
Upstream
The data sent from the streamer’s device to the platform/server. It includes video, audio, and metadata.
Usage Rights (Streaming Usage Rights)
Legal permissions that define what media (music, video, third-party content) can be used in a stream. Violations may result in takedowns or demonetization.
Universal Access
Streaming practices or settings that ensure everyone, including users with disabilities, can access the live content. Includes captions, transcripts, and compatibility with assistive tech.
USB Capture Device
A hardware tool that converts video from cameras or consoles into a digital stream via USB. Common among beginner and mobile streamers.
User Metrics
Data collected about stream viewers including location, device type, watch time, and interactions—used for analysis and optimization.
Username Overlay
A graphic showing the broadcaster’s or viewer’s username on-screen, often used in gaming, shout-outs, or donation alerts.
Underlay
A visual or animated element placed behind the main video feed. Used in graphic-heavy layouts for branding and dynamic designs.
URL Encoder Link
A pre-configured streaming link that automatically applies stream settings in compatible platforms or apps.
Upload Queue
A list of stream recordings or assets pending upload to cloud storage or video-on-demand platforms after the live event ends.
Unscheduled Live Stream
A spontaneous or surprise stream that isn’t previously announced or scheduled, often used for casual updates or breaking news.
Usage-Based Billing (Streaming Services)
A pricing model where streaming platforms charge based on bandwidth, stream duration, or viewer minutes used—common in enterprise solutions.
User Retention Rate
A key performance metric indicating how long viewers stay in a live stream, helping measure content engagement and drop-off points.
Live Streaming Glossary – Letter V
VOD (Video on Demand)
A recorded version of a live stream or pre-produced video made available for playback at any time. Platforms like YouTube and Vimeo automatically save streams as VODs.
Video Bitrate
The amount of video data transmitted per second during a stream, measured in Kbps or Mbps. Higher bitrates usually mean better video quality.
Video Resolution
The number of pixels in each frame of video (e.g., 720p, 1080p, 4K). Affects the clarity and sharpness of a stream.
Virtual Camera
A software-generated webcam that streams your desktop, presentation, or OBS scenes to conferencing tools like Zoom or Teams.
Video Encoder
Software or hardware that compresses raw video into a format suitable for streaming. Common software encoders include OBS, vMix, and XSplit.
Video Compression
The process of reducing the size of a video stream using codecs like H.264 or H.265 to save bandwidth and improve playback.
Video Capture Card
A hardware device that takes an HDMI or SDI video feed from a camera or console and converts it into a format suitable for streaming via USB or PCIe.
Video Overlay
A graphic, animation, or image layered on top of a video feed—used for branding, lower thirds, or real-time alerts.
Virtual Set
A digitally created background or environment used during a live stream, often implemented with green screens or chroma keying.
Viewer Retention
A metric indicating how long viewers stay on a live stream. High retention reflects engaging content and a loyal audience.
Virtual Event
A fully online event (conference, concert, webinar) streamed live and accessed by remote participants.
Viewer Count
The number of viewers watching a live stream at a given time. Can be concurrent (real-time) or total (over the duration).
Voice Over (VO)
A narration or commentary added during a stream, usually off-camera. Used in webinars, tutorials, and storytelling content.
Video Preview
A display of what’s about to go live, used in dual-screen production modes to prepare scenes before pushing them live.
Virtual Background
A feature that allows users to replace their real background with an image or video, often used in webinars and casual streaming.
Video Player
The software interface embedded on websites or apps that viewers use to watch a stream. Examples include HTML5 players and platform-specific players (YouTube, Vimeo).
Video Looping
A technique where a video file or animation is played on repeat. Commonly used for waiting screens or ambient backgrounds.
Video Latency
The delay between when the camera captures the video and when it’s seen by the audience. Lower latency is ideal for interactivity.
Video Frame Rate
The number of video frames transmitted per second—commonly 30fps or 60fps. Higher frame rates provide smoother motion, especially for sports or gaming streams.
Viewer Engagement
The total interaction a stream receives—likes, comments, reactions, shares, poll responses, and donations.
Video Format
The container type of a video file or stream (e.g., MP4, FLV, MOV). Streaming platforms often transcode into multiple formats for compatibility.
Video Feed
The visual content being broadcast live—can be from a camera, screen share, or other video source.
VST Plugins (Virtual Studio Technology)
Audio processing plugins that enhance microphone or music quality during a live stream—used in OBS, vMix, and DAWs.
Viewer Cap (Platform Limit)
A restriction on the number of simultaneous viewers a live stream can support—depends on platform or hosting plan.
Video Snippet (Highlight Clip)
A short, clipped moment from a live stream used for promotion, replay, or social sharing.
Virtual Mixer
A software-based audio mixer that allows you to control, route, and process multiple audio inputs in real-time.
Video Conference Streaming
The act of broadcasting a video call or webinar (via Zoom, Microsoft Teams, etc.) to a broader audience via streaming platforms.
Viewer Feedback Tools
In-stream features such as emoji reactions, rating bars, or sentiment indicators that allow real-time feedback from viewers.
Video Analytics
Detailed metrics about how a stream was viewed—play duration, pauses, replays, drop-offs, and device types.
Vertical Streaming
A portrait-oriented video format (e.g., 9:16 aspect ratio), commonly used on mobile-first platforms like Instagram Live and TikTok Live.
Virtual Studio
A software-based streaming environment that replicates a full broadcast studio digitally, including scenes, media players, and guest management.
Video Stabilization
A feature or post-processing technique that reduces shakiness in mobile or handheld live video feeds.
Live Streaming Glossary – Letter W
Webcam
A camera (built-in or external) used to capture live video input for streaming. Common in personal streams, webinars, and online classes.
WebRTC (Web Real-Time Communication)
A browser-based protocol for peer-to-peer live streaming and video calling with ultra-low latency. Common in video conferencing and lightweight live applications.
Widget
A dynamic, embeddable interface element (e.g., alerts, polls, timers) used in live streaming overlays to enhance interactivity and design.
Waiting Room (Pre-Stream Lobby)
A screen shown before the live stream starts, allowing early viewers to join and wait. Often includes music, countdown timers, or intro messages.
Watermark
A semi-transparent logo or text placed on the stream (usually in a corner) for branding or copyright protection.
Widescreen
A video aspect ratio of 16:9, which is the standard format for most live streams and video platforms.
Wirecast
A professional-grade live video streaming production software that allows switching, titling, and real-time encoding.
Walk-On Animation
A visual effect where on-screen elements (like lower-thirds or speaker names) animate into view, often used to introduce speakers.
White Balance
A camera setting that adjusts color tones so whites appear neutral. Essential in streaming to prevent unnatural color casts on skin or backgrounds.
Workflow (Streaming Workflow)
The complete process and steps taken to plan, produce, stream, and archive a live broadcast—includes pre-stream, live production, and post-stream actions.
Wi-Fi Streaming
Broadcasting a live stream over a wireless internet connection. Convenient but can be unstable compared to Ethernet.
Web Encoder
A browser-based tool that allows users to go live directly from their web browser without needing separate software.
Webinar
A live or pre-recorded video session hosted online for educational or professional purposes, often including Q&A and presentation slides.
Web Page Embed
Integrating a live stream player directly into a website using embed codes—used for branded broadcasts or private events.
White-Label Streaming Platform
A customizable streaming solution that allows companies to brand the player, domain, and interface as their own—often used by businesses and educators.
Waveform Display
A visual representation of audio signals, often used in streaming software to monitor sound levels in real time.
Window Capture
A screen capture source in OBS and similar tools that lets users stream only a specific application window (e.g., PowerPoint or browser).
Watch Time
A key performance metric that tracks the total time viewers have spent watching a live stream. Important for platform algorithms and monetization.
Whitelisting
A security feature that allows only pre-approved IP addresses, email addresses, or users to view or access a stream.
Web Host Streaming
Live streaming hosted on a personal or corporate website via an embedded player, as opposed to using public platforms.
Walkthrough Stream
A live broadcast that provides a guided tutorial or demonstration—used in gaming, software demos, or virtual tours.
Wireless Lavalier Mic
A small, clip-on microphone with wireless connectivity, often used in mobile or on-the-go live streaming for improved audio quality.
Web Analytics Integration
Using tools like Google Analytics to track viewer behavior, traffic sources, and performance metrics of embedded live streams.
Wi-Fi Bonding
Combining multiple wireless connections to create a more stable internet source for live streaming. Useful in field or mobile production.
Web-Based Studio
Online tools like StreamYard or Melon that offer cloud-based live production capabilities—ideal for browser-only workflows.
Watermarked Stream
A stream embedded with a visual identifier (e.g., brand name or platform name) that cannot be removed, usually in free or demo versions of tools.
Watch Party
A feature where users can stream pre-recorded or live content together, often with synchronized viewing and a shared chat.
Word Clock Sync
A technical term related to synchronizing digital audio streams—important in multi-device, high-end live production.
Webview Source
A streaming software input that loads a live web page within a scene—commonly used for embedding widgets, web graphics, or real-time data.
Wave File Playback
Playing high-quality, uncompressed audio files (WAV format) during a stream—often used for intros, stingers, or music cues.
Live Streaming Glossary – Letter X
XLR Microphone
A professional-grade microphone using an XLR connector, offering superior audio quality and used in studio-level or high-quality live streaming setups.
XSplit
A popular live streaming and recording software used by gamers and professionals. Offers scene switching, overlays, and RTMP output—suitable for YouTube, Facebook Live, and Twitch.
XML (Extensible Markup Language)
A data structure format that can be used for metadata exchange in live streaming workflows—commonly used in closed captioning and stream scheduling integrations.
Xbox Streaming
The ability to stream gameplay directly from an Xbox console to platforms like Twitch or YouTube, using built-in streaming capabilities or through capture cards.
X264 Encoder
A software-based implementation of the H.264 video compression standard. Frequently used in OBS Studio and similar tools for video encoding.
X86 Architecture
Refers to the processor architecture used in most PCs. Important when choosing compatible streaming software and hardware encoders.
XR (Extended Reality)
A collective term for virtual reality (VR), augmented reality (AR), and mixed reality (MR). Occasionally used in advanced or immersive live stream productions.
XaaS (Anything as a Service)
In the context of streaming, refers to cloud-based services like encoding-as-a-service, storage-as-a-service, or streaming-infrastructure-as-a-service.
XMPP (Extensible Messaging and Presence Protocol)
Though less common in modern streaming, it’s an open-standard communication protocol that can be used for real-time chat features integrated with live streaming.
X-Factor Content
A creative term for unique, charismatic, or unpredictable elements that make a live stream particularly engaging or viral.
X-Ray Feature (Interactive Video Layers)
A feature found on platforms like Amazon Prime Video, allowing viewers to interact with additional metadata (e.g., cast info, trivia) during playback. In live streaming, similar interactivity can be embedded via custom overlays.
Xbox Game Bar
A built-in tool in Windows for screen capture and game streaming from Xbox and Windows PCs—includes overlays and microphone controls for live broadcasting.
Live Streaming Glossary – Letter Y
YouTube Live
Google’s live streaming platform that allows creators, educators, and brands to broadcast real-time video to subscribers and the public. Offers monetization, Super Chat, and DVR features.
YouTube Premiere
A feature where a pre-recorded video is scheduled and played as a live event, enabling real-time interaction through live chat during the “premiere.”
YouTube Studio
The backend dashboard where YouTube creators manage their content, including live streams. Provides tools for setting up streams, monitoring analytics, and engaging with viewers.
YouTube Stream Key
A unique identifier that links your streaming software (e.g., OBS or Streamlabs) with your YouTube Live broadcast session.
YouTube Super Chat
A monetization feature allowing viewers to pay to highlight their messages during a live stream. Used by creators to engage with paying fans.
YouTube Memberships
A subscription feature on YouTube where users pay monthly to support a channel, gaining access to exclusive live streams, badges, and emojis.
YouTube Analytics
A detailed reporting system that includes metrics for live streams such as concurrent viewers, watch time, audience retention, chat rate, and monetization performance.
YouTube Cards
Interactive elements that appear during YouTube videos (including live replays) to promote other content, links, or calls to action.
YouTube Embed
Allows a YouTube live stream to be embedded into a website or blog using an iframe, extending viewership beyond the platform.
YouTube Chat Moderation
The system and tools used to manage viewer interaction during a YouTube Live stream, including moderators, filters, and blocked terms.
YouTube DVR Mode
A feature in YouTube Live that allows viewers to rewind, pause, or replay a portion of a live stream while it is still ongoing.
YouTube Stream Delay
The intentional or platform-imposed delay between the streamer’s broadcast and viewer playback. Can range from ultra-low latency (~2 seconds) to normal (~30 seconds).
YouTube Channel Live Tab
A dedicated tab on YouTube channels that aggregates all current and past live streams, improving accessibility and audience discovery.
YUV Color Space
A color encoding system used in digital video (including live streams). It separates luminance (Y) from chrominance (U and V) and is favored in compression and broadcasting.
YouNow
A lesser-known live streaming platform used by musicians, influencers, and performers for real-time engagement, especially among younger audiences.
Year-in-Streaming Summary
An annual report or recap offered by platforms or tools (e.g., YouTube Recap or Twitch Recap) that summarizes a streamer’s or viewer’s yearly performance metrics.
Y-Axis Adjustment (Video Positioning)
The vertical placement of an element in a video or scene—important for positioning overlays, text, or camera feeds during a live stream.
YouTube Live Redirect
A feature that allows creators to automatically send their live stream viewers to another live stream or Premiere on their own or a partner’s channel.
Live Streaming Glossary – Letter Z
Zoom (Zoom Video Communications)
A leading video conferencing tool widely used for webinars, hybrid events, and virtual meetings. Many users stream Zoom sessions live to platforms like YouTube or Facebook.
Zoom Integration
The capability to connect Zoom with live streaming platforms or software (e.g., OBS, Restream, YouTube Live) to broadcast meetings or events in real time.
Zoom Webinar
A premium Zoom feature tailored for hosting large-scale live events with Q&A, attendee registration, and streaming support.
Zoom Streaming
Refers to broadcasting a Zoom session live on platforms like YouTube, Facebook, or custom RTMP destinations.
Zoom Room
A physical or virtual conference room solution from Zoom that supports multi-camera setups, screen sharing, and live streaming integration.
Z-Order (Layering in Video Production)
A technical term describing the stack order of elements on a video scene—used in software like OBS or vMix to determine which source appears in front or behind others.
Zoom Fatigue (Live Streaming Fatigue)
A modern term describing mental exhaustion from extended periods of online video interaction, especially in educational or work-related streams.
Zero-Latency Monitoring
An audio monitoring feature where the broadcaster hears their microphone input in real-time with no perceptible delay—crucial for live music, voiceovers, or presentations.
Zebra Stripes (Camera Exposure Indicator)
A camera tool that displays striped overlays on overexposed areas of the frame—helpful for adjusting lighting before going live.
Zixi Protocol
A professional-grade transport protocol designed for reliable, low-latency video delivery over IP networks, used in enterprise-level streaming solutions.
Zone Restriction (Geo-Zoning)
A streaming access control feature that limits content availability based on geographic zones (countries, regions, or cities).
Zoom Transition
A type of camera or scene effect that simulates zooming in or out during a live stream—used for dramatic or cinematic effect.
Zapping (Viewer Behavior)
A term borrowed from TV, referring to rapidly switching between streams or skipping through content. Important for understanding viewer drop-off behavior.
Zettabyte (ZB)
A unit of digital information. While not directly applied to individual streams, it’s used in large-scale data analytics and global streaming traffic projections.
Zencoder
A cloud-based encoding service (by Brightcove) that transcodes live and on-demand video content for adaptive playback on all devices.
Conclusion
With this A–Z glossary in hand, you are now equipped with the vocabulary and foundational knowledge needed to confidently navigate the world of live streaming. Whether you’re hosting webinars, streaming games, launching product demos, or producing high-end virtual events, understanding this terminology is key to delivering seamless, engaging, and professional-grade broadcasts.
As technologies advance and platforms evolve, so too will the language of live streaming. Use this glossary as a living document—one that grows with your experience and adapts to the ever-changing digital broadcast landscape. Bookmark it, share it with your team, and revisit it often to stay informed, innovative, and impactful in your streaming journey.
