An MP3 file that is created using the setting of 128 kbit/s will result in a file that is about 1/11 the size of the CD file created from the original audio source.ĪAC supports inclusion of 48 full-bandwidth audio channels in one stream plus 16 low frequency effects channels, up to 16 "coupling" or dialog channels, and up to 16 data streams. The use of lossy compression is designed to greatly reduce the amount of data required to represent the audio recording and still sound like a faithful reproduction of the original uncompressed audio. AAC has been standardized by ISO and IEC, as part of the MPEG-2 and MPEG-4 specifications. ![]() ![]() Designed to be the successor of the MP3 format, AAC generally achieves better sound quality than MP3 at similar bit rates. It is a common audio format for consumer audio streaming or storage, as well as a de facto standard of digital audio compression for the transfer and playback of music on most digital audio players.Īdvanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression. MPEG-1 or MPEG-2 Audio Layer III, more commonly referred to as MP3, is an audio coding format for digital audio which uses a form of lossy data compression.
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