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MIDI
MOD
MP3
MPEG

TTA
WAV

An audio format occurs as medium for storing sound and music. A term is applied to two a physical medium & a format of the content – within computer science it is often limited to the file format, but its wider utilize normally refers to a physical method utilized to store the information.

Music is recorded & distributed utilizing the kind of audio formats, a few of which store extra principles.

Timeline of audio format developments
!Year !Physical formats !Content formats |- |1870s |Phonograph cylinder | |- |1895 |Gramophone record | |- |1930s |Wire recording | |- |1940s |Reel-to-reel, Magnetic Tape | |- |1948 |Vinyl record | |- |1960s |8-track | |- |1963 |Compact cassette | |- |1969 |Microcassette | |- |1970s |Elcaset | |- |1975 | |'Dolby Stereo' cinema surround sound |- |1979 |Compact Disc (CD) | |- |1985 | |Audio Interchange File Format (AIFF) |- |1987 |Digital audio tape (DAT) | |- |1990s |Digital Compact Cassette | |- |1991 |MiniDisc |ATRAC |- |1992 | |WAVEform (WAV) Dolby Digital surround cinema sound |- |1993 | |Digital Theatre System (DTS) |- |1995 | |MP3 |- |1996 |DVD-Audio | |- |1999 |Super Audio CD (SACD) |Windows Media Audio (WMA) |- |2000 | |Free Lossless Audio Codec (FLAC) |- |2001 | |Advanced audio coding (AAC) |- |2002 | |Ogg Vorbis |- |2003 |DualDisc | |}

GSM 06.10 Lossy Speech Compression Format
Details about the format and example source code.

Lossless compression vs. speed
Comparisons of most popular lossless audio formats.

Rob Nowiks Audio Resource
Site contains discussion of audio formats, related audio algorithms and general audio production techniques.

ATRAC: Adaptive Transform Acoustic Coding for MiniDisc
ATRAC is an audio format based on psychoacoustic principles originally used for Sony MiniDisc players.

Computers: Multimedia: Music and Audio: Audio Formats
Computers: Multimedia: Music and Audio: Software
Computers: Multimedia: Music and Audio: Software: Notation