A codec converts both uncompressed content to compressed content, and compressed content to uncompressed content. When a codec is used to compress audio and video data into smaller packages, network and multimedia applications provide richer and fuller content, yet they do not consume as much hard disk space or network bandwidth as applications that do not use compression. Intraframe compression averages fields of similar pixels, similar to JPEG compression. Interframe compression is also called temporal compression. In this way, frames are changed without having to send redundant data continually.
Audio compression uses a number of different compression algorithms.
These algorithms minimize the amount of redundant data that the client receives. The user just chooses ASF content, and Windows Media Player begins to play it. A variety of codecs are available for distributing ASF content. All rights reserved. Legal Notices .