| .aria |
Chipsounds Sound File |
| .ariax |
Chipsounds XML Sound File |
| .a52 |
Atari 5200 ROM |
| .avastsounds |
Avast! Soundpack File |
| .aimppl |
AIMP Playlist File |
| .a2p |
Adlib Tracker II Pattern File |
| .a2t |
Adlib Tracker II Tiny Module File |
| .axa |
Annodex Audio File |
| .audionote |
AudioNote File |
| .awc |
Emulex AWC Firmware Update File |
| .avr |
Audio Visual Research File |
| .al |
A-Law Compressed Sound Format |
| .atrac |
Sony ATRAC Audio File |
| .alac |
ALAC Encoded Audio File |
| .aix |
AIX Audio File |
| .box |
E-mail Mailbox |
| .band |
GarageBand Project File |
| .bwf |
Broadcast Wave File |
| .bap |
Blaze Audio Wave Information File |
| .bdd |
CARA Sound Radiation Data File |
| .bun |
Cakewalk Bundle File |
| .bnk |
Adlib Instrument Bank |
| .bidule |
Bidule Layout File |
| .bww |
Bagpipe Player File |