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AAC is an audio format jointly developed by Fraunhofer IIS-A, Dolby and AT&T. It is part of the MPEG-2 specification. The algorithm used by AAC is different from that of MP3. AAC combines other functions to improve coding efficiency. AAC's audio algorithm far exceeds some previous compression algorithms (such as MP3, etc.) in compression capabilities. It also supports up to 48 audio tracks, 15 low-frequency audio tracks, more sample rates and bit rates, multi-language compatibility, and higher decoding efficiency. In short, AAC can provide better sound quality while being 30% smaller than MP3 files. |
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