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MPEG 4
Overview of the MPEG-4 Version 1 Standard
After MPEG-1 and MPEG-2, the next phase of compression work in ISO/IEC JTC1/SC29/WG11 is called MPEG-4 and is planned to be available by end of 1998 in a first version. The MPEG-4 format is meant to become the universal language between broadcasting, movie and multimedia applications. While former MPEG standards were only concerned about compression, MPEG-4 will provide additional functionality (e.g. bitrate scalability, object-based representation etc.) and is based on a rich tool set starting at bitrates as low as 2 kbit/s for a channel. The core part of the MPEG-4 audio coder is based on MPEG-2 AAC technology which is complemented by a number of additional coding tools.
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