The Full Live Streaming Glossary

Blog Post
Live streaming event
Live streaming is one of the most talked-about video trends in the last few years. By providing remote participants and globally-dispersed employees with access to company events, businesses can maintain a transparent and motivated corporate culture. The term “live streaming” is, however, an umbrella concept which comprises a plethora of technologies, tools, and products. Read our live streaming glossary to get a look behind the scenes, literally.

Live Streaming Glossary Intro

There’s more to live streaming than meets the eye. A standard live streaming event consists of multiple terms, technologies, and processes. In the next live streaming glossary, we will familiarize you with a few key terms often used in conjunction with video streaming:


Adaptive Bitrate Streaming

Adaptive bitrate streaming or adaptive streaming, for short, is a streaming technology designed to serve each viewer with the appropriate video format, both in terms of device and available bandwidth. For example, a viewer watching a video from their mobile device will be matched with a compressed format, typically 360p, allowing them to enjoy a smooth video experience regardless of network conditions.

AI subtitles

Subtitles are a powerful enhancer that allows people who are hard-of-hearing, who are watching a video with the sound off, or who don’t speak its language to understand what it’s about. Using AI technology, companies can now automatically transcribe and add subtitles to any of their videos. At movingimage, we call this feature AI Subtitles.

Live streaming glossary: movingimage subtitles feature


One of the world’s largest Content Delivery Network (CDN) with more than 90,000 servers all over the world. movingimage partners with Akamai to guarantee fast, secure, and reliable end-to-end delivery of all video content.


Bandwidth refers to the capacity of a network to transfer the maximum amount of data from one point to another in a given amount of time, usually one second. When a video plays in lower quality than expected or is experiencing buffering issues, insufficient bandwidth is often to blame.


Bitrate refers to the speed of data, measured in bits, transferred over the Internet per second. Bitrate is commonly measured in bits per second (bps), kilobits per second (Kbps), or megabits per second (Mbps).


The term bottleneck refers to an overloaded network. Video files tend to be exceptionally heavy and may overload a network, especially when viewed by multiple people simultaneously. An Enterprise Video Platform (EVP) can alleviate bottlenecks by automatically transcoding a video into various formats and resolution levels. When the video is opened, the EVP automatically provides the end device with the most suitable video file. Read our blog post to learn more about it.


Buffering, bottlenecks, and bandwidth are all interrelated terms. Buffering refers to downloading a certain amount of data before starting to play a video. Slow buffering is a lag in the delivery of a video and usually results from insufficient bandwidth.


Content Delivery Network (CDN) refers to a service provided by a company. The company uses a network of servers located in various data centers around the world to deliver web content to a user based on their location, the origin of the webpage, and the content delivery server. movingimage is using Akamai’s CDN.


Unlike a CDN that delivers content over the Internet, an Enterprise Content Delivery Network (eCDN) is a content delivery network that makes use of a corporate network to deliver content internally. Using an eCDN guarantees high-quality video delivery as well as minimal impact on bandwidth availability.


A video encoder or video codec is a device that transcodes a video into multiple streaming-compatible formats by compressing or decompressing a video. The more compressed a video is, the less bandwidth it requires, and the less buffering it requires.

Live streaming video resolutions


Framerate refers to the speed at which images in a video are shown and is commonly measured in frames per second (FPS). The higher the FPS is, the smoother the video will appear. Generally speaking, the minimum industry standard is 24FPS.

HTML5 Video

HTML5 is the new industry standard in video streaming. It’s limber, responsive, and requires little processing power. Not to mention, it’s browser and platform-agnostic, unlike its predecessor, the Flash player. movingimage uses an HTML5 player that boasts fast loading time, high resolution, low CPU usage during playback, and even flash fallback.


An IFrame (Inline Frame) refers to an HTML document that is embedded inside another HTML document on a website.  When you embed videos from media streaming sites into your website, you’re using iFrames.


Refers to media that is simultaneously recorded and broadcast. Viewers can not only watch but also interact with the speaker/s during the session. In the last few years, livestreaming has become a prevalent corporate communication strategy.

Livestream Operator

A livestream operator is the person in charge of corporate streaming activity. They monitor streaming functionalities and make sure that no technical hiccups interrupt the session.

Moderated Chat

A Moderated Chat is a typical live streaming scenario in which comments and questions submitted by participants via the chat box can’t go public unless the moderator approves them.


To stream a video, it first needs to be broken down into smaller pieces called data packets. That being said, video packets tend to be larger than other media like text or audio, which may cause interruptions during streaming. Using an encoder, companies can compress video data and facilitate its delivery.


A Question and Answer (Q&A) session is a common practice meant to keep viewers engaged and is commonly held following a livestreaming session. During a Q&A, remote viewers can refer questions to the speakers in real-time via a dedicated chatbox. Studies show that Q&As can boost engagement by up to 82 percent[1].


Ramp’s enterprise content delivery network, AltitudeCDN™, provides simple and secure multicasting and advanced caching software to optimize video traffic behind the firewall. Read more about the movingmage-Ramp integration.


Video resolution refers to the number of pixels that could be displayed in each dimension. 360p, 480p, 720p, and 1080p—all represent the number of vertical pixels a video has from top to bottom. Note that videos in higher resolution are also heavier and require more bandwidth. The best way to determine the ideal resolution and format per device and network is via adaptive streaming.


Real-Time Messaging Protocol (RTMP) is a protocol responsible for high-performance transmission of audio, video, and other forms of data from an encoder to a server. Today, most streaming providers support RTMP streaming, including Livestream.

Town hall meetings

Town hall meetings, or All-Hands meetings, are meetings meant for management to share important information and for employees to understand the goals of the organization. While, traditionally, town hall meetings were held on-site, nowadays, more and more organizations choose to host virtual meetings instead.


Transcoding is the process of converting data to a more compressed, reduced bit rate while still maintaining the original video format. Transcoding allows users to fit their videos into a much smaller storage space and deliver them more efficiently. movingimage’s automated transcoding supports the conversion to standard or special formats used by the player to allow adaptive bitrate streaming. Learn more.

Upload/Download speed

Upload speed refers to the rate at which data is transferred from a user’s device to the Internet, whereas download speed refers to the rate at which data can be transferred from the Internet to a user’s device. Therefore, upload speed is key for users looking to broadcast a livestreaming event, whereas download speed is key for users looking to watch it.


Video on Demand (VOD) is a video media distribution system that allows users to access specific video content whenever they wish rather than depend on a static broadcasting schedule. A live streaming session is often recorded and uploaded to a website. This practice allows viewers to watch it later, on-demand.


A Webcast, not to be confused with web conferencing, refers to the distribution of a single content source to many simultaneous viewers using streaming technology. Learn more about movingimage’s webcast solution.

Now, that you’ve familiarized yourself with the basic live streaming glossary, you’re ready for the next step: Watch our live streaming webinar and learn how to prepare for your next live event.

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