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Here is a short glossary with the terms you may need to know when streaming live or on demand videos:

FPS = framerate, frames per second

B = byte = 8 bits

MB = Megabyte

Mb or Mbit= megabit

KB = kilobyte

Kb or kbit = kilobit

Codec (from coder/decoder) – software and/or hardware used to code/decode audio or video data.

Bpp – bits per pixel, describes color depth or compression ratio

Bitrate – number of bits that are conveyed or processed per unit of time

Chrominance (chroma) – color information

Luma (don’t confuse with Luminance) – brightness information

CRT – cathode ray tube

FMS – Flash Media Server

API – application programming interface

AAC – Advanced Audio Coding

Bandwidth – the amount of data that can be sent over a connection in a given amount of time without distortion. It should not be confused with band.

Band – A specific range of frequencies (for example those between 1850 MHz and 1995 MHz) are called a band.

Broadband – In data communications, a “broadband connection” is a connection with a high speed of data transfer (greater than 56 kbps). Generally, it is fast enough to support streaming video.

FTP – File Transfer Protocol

GB – Gigabyte

HTML – Hypertext Markup Language

IP – Internet protocol

MHz – Megahertz

RSS – Rich Site Summary

USB – Universal Serial Bus

VoIP – Voice over Internet Protocol

Buffering – The receiving and storing of data before it is played back.

Broadcast – To deliver a presentation, live or prerecorded. Opposite to on-demand

Client – A software application that receives data from a server.

Download – To send a file over a network with a nonstreaming protocol such as HTTP. Opposite to stream

DSL – Digital Subscriber Line. Technology used for transmitting digital data over a telephone line faster than through dial-up modems

Encoding – Converting a file into a compressed, streaming format

HTTP – Hypertext Transport Protocol. The protocol used by Web servers to communicate with Web browsers

ISP – Internet Service Provider. A company providing Internet access

LAN – Local Area Network. A computer network operating to a local area (single location)

URL – Uniform Resource Locator. A location description allowing a Web browser to receive data stored on a Web server

AVI – (Audio Video Interleaved) A Microsoft video format which contains multiple streams of different types of data, such as audio and video

DNS – (Domain Name System) DNS servers are located at strategic points on the Internet to resolve the routing of e-mail and Internet connections

GUI – (Graphical User Interface). An operating system interface between the user and the computer based on graphics

Hyperlink – A link in a web page that brings you to another webpage when activated

WMV – Windows Media Video

WMA – Windows Media Audio

WAV – sound format developed by Microsoft and used in Microsoft Windows

VOD – (Video on Demand): Video that can be accessed at any time by the user, opposite to live streaming

JavaScript – A script language released by Netscape for creating small programs embedded in a web page

I will update it periodically to keep you informed with the newest information.

Catalin
Professional Streaming Consultant

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