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Codec

The word codec is a portmanteau of “coder-decoder” and denotes the role of codecs in encoding/decoding digital data. Specifically, codecs refer to the hardware and/or software that encode and decode digital audio and video streams, such as those used for watching local digital video, streaming video over the Internet, video conferencing, and other multimedia applications.

Examples of common codecs in use all around us include Dolby Digital/HD sound in movie and home theaters, MPEG-2 encoding both in DVDs and MP3s, and CDMA and GSM audio compression, two common codecs used by cellular carriers.

For more information about codecs on your computer system and how to use them, check out the following How-To Geek articles:

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