Advanced Audio Coding
lastmod 2018-08-17created 2016-01-212 edits
Advanced Audio Coding (AAC, standard document ISO/IEC 13818-7) is a standard lossy data compression scheme used for digital audio. As a successful successor to MP3, AAC incorporates much technology from the Fraunhofer Institute for Integrated Circuits, part of the Fraunhofer Society that developed MP3, along with features developed by companies such as Dolby Lab.
AAC is the default audio format used on Apple's iPhone, iPod, and iTunes, and is used for all tracks in the iTunes Store.
AAC is used as the standard audio format of Sony's PlayStation 3 and is also used in the MPEG-4 video standard. It is also used as the audio standard for satellite DMB and terrestrial DMB outside Korea; in Korea, BSAC is used instead of AAC as the audio standard for terrestrial DMB.
AAC is the file format used when playing music stored on an SD card on Nintendo's Nintendo DSi, Nintendo DSi LL, and Wii.
The file extension is .m4a.