Webcast: The transmission of live or delayed versions of audio or video broadcasts using the Web. Webcasting incorporates interactive features wrapped around the streaming media content that takes the raw media and turns it into a corporate presentation. Webcasting is a “one to many” communication tool with a presenter(s) broadcasting a message out to viewers. Although based in software the webcast differs greatly from web conferencing applications. Event webcast is customized in feature set and appearance to meet your business objective.

Videoconference: A technology that allows users in different locations to hold face-to-face meetings without having to move to a single location.

Webinar: a seminar conducted over the Internet.
Teleconference – a conference with participants in different locations linked by telecommunications devices

Audiocast: The transmission of audio content over a data network. This term serves as a broad descriptor of any audio content that is not syndicated within an XML enclosure, i.e. a podcast. An audiocast may simply be an MP3 file posted on a server and hyperlinked to from a Web page

Broadcast: To cast or throw forth something in all directions at the same time. Used as a noun, a broadcast has historically meant a radio or television program that is transmitted over airwaves for public reception by anyone with a receiver tuned to the right signal channel. Many other ‘casts’ may be used interchangeably as verbs or nouns.

AV (Audio Visual): refers to the group responsible for the in-room audio (mics, speakers, audio boards, etc.) and in-room visuals (lighting, screens, projectors, etc.)
Staging: Refers to the group responsible for organizing the stage(s), temporary platforms , seating and tables, drape, etc

Content Delivery Network (CDN):   is a system of distributed servers that deliver webpages and other Web content to a user based on the geographic locations of the user, the origin of the webpage and a content delivery server.

VOD/ Archive /On-Demand: Refers to a Webcast that is available for viewing at anytime (as opposed to a live Webcast at a specific time). This refers to Webcasts that are offered as On-Demand only as well as the Archive of a live Webcast.

Encoding: The process of converting analogue to digital in the context of audio, video or multimedia data types.

Live Slides / PowerPoint Integration: A feature of a webcast that enable the viewer to see Slides or Powerpoint presentations alongside the video portion of the webcast.

Source: original video and audio output

Production: Referring to the video and video switching resource in place to capture the event

Viewer / Attendees: An individual using or accessing a Webcast. A Viewer is sometimes referred to as an audience member, a participant or an Attendee.

Stream /Streaming: To transmit live over the Internet using a technique that allows audio and visual components of a Webcast to be delivered in a continuous manner before the entire file has been received. Streaming a Webcast enables viewers to listen and view the Webcast via a web browser in near real-time.  Streaming is route technology behind webcasting that allows us to send audio or video signals online for live and archive events.

Metrics / Analytics / Reporting: Data from a Webcast that is available online in real-time. Reports includes Registrant data as well as Viewer statistics.

iFrame: An IFrame (Inline Frame) is an HTML document embedded inside another HTML document on a website. The IFrame HTML element is often used to insert content from another source, such as webcast player.

Switched/Switcher: Referring to a webcast with more than one video source.  The Switcher is the hardware and operator responsible for selecting which video feed is being broadcast at any given time.

Multi-Lingual: refers to a webcast/audiocast that is supporting more than one audio feed.

Floor Feed: refers the the audio captured in the room before being translated.  Floor audio is direct output of what is spoken into the microphones.

Landing Page: The web page/URL where viewers/attendees are directed to participate in a webcast.