Advanced Audio Coding |Internet media type|| |Type of
format||Audio compression format, Lossy compression| |Contained
by||MPEG-4 Part 14, 3GP and 3G2, ISO base media file format and
Audio Data Interchange Format (ADIF)| Advanced Audio Coding
(AAC) is a standardized, lossy compression and encoding scheme
for digital audio. Designed to be the successor of the MP3
format, AAC generally achieves better sound quality than MP3 at
similar bit rates. AAC has been standardized by ISO and IEC, as
part of the MPEG-2 and MPEG-4 specifications. Part of the AAC
known as High-Efficiency Advanced Audio Coding (HE-AAC) which is
part of MPEG-4 Audio is also adopted into digital radio
standards like DAB+ and Digital Radio Mondiale, as well as
mobile television standards DVB-H and ATSC-M/H. AAC supports
inclusion of 48 full-bandwidth (up to 96 kHz) audio channels in
one stream plus 16 low frequency effects (LFE, limited to 120
Hz) channels, up to 16 "coupling" or dialog channels, and up to
16 data streams. The quality for stereo