Audio File Types - File extensions used for audio files.
| Extension | File Description | Popularity | |
| .4mp | 4-MP3 Database File | Average | |
| .669 | UNIS Composer 669 Module | Average | |
| .6cm | Six Channel Module | Average | |
| .8cm | Eight Channel Module | Average | |
| .8med | Amiga OctaMed Music File | Average | |
| .8svx | Amiga 8-Bit Sound File | Average | |
| .a2m | AdLib Tracker 2 File | Average | |
| .aa | Audible Audio Book File | Average | |
| .aa3 | ATRAC Audio File | Common | |
| .aac | Advanced Audio Coding File | Very Common | |
| .aax | Audible Enhanced Audiobook File | Average | |
| .abc | ABC Music Notation | Average | |
| .abm | Music Album | Average | |
| .ac3 | Audio Codec 3 File | Average | |
| .acd | ACID Project File | Average | |
| .acm | Interplay Audio File | Common | |
| .act | ADPCM Compressed Audio File | Average | |
| .adg | Ableton Device Group | Average | |
| .afc | Mass Effect 2 Audio File | Common | |
| .agm | DTS Multi-channel Pro Packer File | Average | |
| .ahx | WinAHX Tracker Module | Average | |
| .aif | Audio Interchange File Format | Very Common | |
| .aifc | Compressed Audio Interchange File | Average | |
| .aiff | Audio Interchange File Format | Average | |
| .ais | Velvet Studio Instrument | Average | |
| .akp | Akai Sampler File | Average | |
| .al | A-Law Compressed Sound Format | Average | |
| .alaw | A-Law Compressed Sound Format | Average | |
| .all | Cubasis Project File | Average | |
| .amf | Advanced Module File | Average | |
| .amr | Adaptive Multi-Rate Codec File | Average | |
| .ams | Extreme Tracker Module | Average | |
| .ams | Velvet Studio Module | Average | |
| .aob | DVD-Audio Audio Object File | Average | |
| .ape | Monkey's Audio Lossless Audio File | Average | |
| .apf | Sony Ericsson Firmware Acoustics File | Uncommon | |
| .ase | Velvet Studio Sample | Average | |
| .atrac | Sony ATRAC Audio File | Rare | |
| .au | Audio File | Average | |
| .aud | Video Game Compressed Audio File | Average | |
| .aup | Audacity Project File | Average | |
| .avr | Audio Visual Research File | Average | |
| .awb | AMR-WB Audio File | Uncommon | |
| .band | GarageBand Project File | Average | |
| .bap | Blaze Audio Wave Information File | Average | |
| .bdd | CARA Sound Radiation Data File | Average | |
| .box | CARA Loudspeaker Design File | Average | |
| .bun | Cakewalk Bundle File | Average | |
| .bwf | Broadcast Wave File | Average | |
| .c01 | Typhoon Wave Audio File | Average | |
| .caf | Core Audio File | Common | |
| .cda | CD Audio Track Shortcut | Average | |
| .cdr | Raw Audio CD Data | Average | |
| .cel | Audition Loop | Average | |
| .cidb | iTunes CD Information File | Average | |
| .cmf | Creative Music Format | Uncommon | |
| .copy | Sony Ericsson Protected Content File | Average | |
| .cpr | Cubase Project | Common | |
| .cpt | DTS Compact Audio File | Average | |
| .csh | Cubase Waveform File | Average | |
| .cwp | Cakewalk SONAR Project | Average | |
| .d00 | OPL2 FM Audio File | Average | |
| .d01 | OPL2 FM Audio File | Average | |
| .dcf | DRM Content Format File | Average | |
| .dcm | DCM Audio Module | Average | |
| .dct | Dictation Audio File | Average | |
| .ddt | Jill of the Jungle Music File | Rare | |
| .dewf | SoundEdit Recorded Instrument | Average | |
| .df2 | Defractor 2 Instrument | Average | |
| .dfc | Defractor Instrument | Average | |
| .dig | Digilink Audio File | Average | |
| .dig | Sound Designer Audio File | Average | |
| .dls | Downloadable Sounds File | Average | |
| .dm | DRM Delivery Message | Average | |
| .dmf | Delusion Digital Music File | Average | |
| .dsf | Delusion Digital Sound File | Average | |
| .dsm | Digital Sound Module | Average | |
| .dsp | Dynamic Studio Professional Module | Average | |
| .dss | Digital Speech Standard File | Common | |
| .dtm | DigiTrakker Module | Average | |
| .dts | DTS Encoded Audio File | Average | |
| .dtshd | DTS-HD Master Audio File | Average | |
| .dvf | Sony Digital Voice File | Average | |
| .dwd | DiamondWare Digital Audio File | Average | |
| .ear | Eyemail Audio Recording | Average | |
| .efa | Ensoniq ASR File | Average | |
| .efe | Ensoniq EPS File | Average | |
| .efk | Ensoniq KT File | Average | |
| .efq | Ensoniq SQ1/SQ2/KS-32 File | Average | |
| .efs | Ensoniq SQ-80 File | Average | |
| .efv | Ensoniq VFX-SD File | Average | |
| .emd | ABT Extended Module | Average | |
| .emp | eMusic Playlist File | Common | |
| .emx | eMusic Download File | Common | |
| .esps | ESPS Sampled Data File | Average | |
| .f2r | Farandoyle Linear Module File | Average | |
| .f32 | Raw 32-Bit Audio File | Average | |
| .f3r | Farandoyle Blocked Module File | Average | |
| .f64 | Raw 64-Bit Audio File | Average | |
| .far | Farandole Composer Module | Average | |
| .fff | Gravis UltraSound Sound Bank | Average | |
| .flac | Free Lossless Audio Codec File | Common | |
| .flp | FruityLoops Project | Average | |
| .fls | Flash Lite Sound Bundle | Uncommon | |
| .fsm | Farandole Composer WaveSample File | Average | |
| .fzb | Casio FZ-1 Bank Dump | Average | |
| .fzf | Casio FZ-1 Full Dump | Average | |
| .fzv | Casio FZ-1 Voice Dump | Average | |
| .g721 | G.721 Audio File | Average | |
| .g723 | G.723 Audio File | Average | |
| .g726 | G.726 Audio File | Average | |
| .gig | Tascam GigaSampler File | Average | |
| .gp5 | Guitar Pro 5 Tablature File | Average | |
| .gpk | WaveLab Audio Peak File | Average | |
| .gsm | Global System for Mobile Audio File | Average | |
| .gsm | US Robotics GSM Audio File | Average | |
| .hma | Sony HI-MD Audio File | Uncommon | |
| .ics | IC Recorder Sound File | Average | |
| .iff | Interchange File Format | Very Common | |
| .imf | Id Music File | Rare | |
| .ins | Ensoniq Instrument | Average | |
| .ins | Sample Cell II Instrument Definition File | Average | |
| .it | Impulse Tracker Module | Uncommon | |
| .iti | Impulse Tracker Instrument | Average | |
| .its | Impulse Tracker Sample | Average | |
| .jam | JAM Musical Score | Average | |
| .k25 | Kurzweil K2500 File | Average | |
| .k26 | Kurzweil K2600 File | Average | |
| .kar | Karaoke MIDI File | Average | |
| .kin | Kinetic Music Project | Average | |
| .kit | Battery Drum Kit File | Uncommon | |
| .kmp | Korg Trinity/Triton Keymap File | Uncommon | |
| .koz | Audiokoz Music File | Average | |
| .koz | Bell Music File | Average | |
| .krz | Kurzweil K2000 File | Average | |
| .ksc | Korg Trinity/Triton Script File | Uncommon | |
| .ksf | Korg Trinity/Triton Sample File | Average | |
| .kt2 | Battery 2 Drum Kit File | Uncommon | |
| .kt3 | Battery 3 Drum Kit File | Average | |
| .ktp | Kinetic Project Template | Average | |
| .l | Left Audio Channel File | Average | |
| .la | Lossless Audio File | Average | |
| .lqt | Liquid Audio File | Uncommon | |
| .lso | Logic Audio Project | Average | |
| .lvp | Avaya Voice Player Audio File | Uncommon | |
| .lwv | Linguistically Enhanced Sound File | Average | |
| .m1a | MPEG-1 Audio File | Uncommon | |
| .m3u | Media Playlist File | Very Common | |
| .m4a | Apple Lossless Audio File | Common | |
| .m4b | MPEG-4 Audio Book File | Common | |
| .m4p | iTunes Music Store Audio File | Average | |
| .m4r | iPhone Ringtone File | Common | |
| .ma1 | Monarch Audio File | Average | |
| .mdl | DigiTrakker Module | Average | |
| .med | Amiga MED Sound File | Average | |
| .mgv | Yamaha MegaVoice File | Average | |
| .mid | MIDI File | Very Common | |
| .midi | MIDI File | Common | |
| .miniusf | Nintendo 64 Song File | Average | |
| .mka | Matroska Audio File | Average | |
| .mlp | Meridian Lossless Packing Audio File | Uncommon | |
| .mmf | Synthetic Music Mobile Application File | Average | |
| .mmm | MAGIX Music Maker File | Uncommon | |
| .mo3 | MO3 Audio File | Average | |
| .mod | Amiga Music Module File | Common | |
| .mp1 | MPEG-1 Layer 1 Audio File | Uncommon | |
| .mp2 | MPEG Layer II Compressed Audio File | Average | |
| .mp3 | MP3 Audio File | Very Common | |
| .mpa | MPEG-2 Audio File | Very Common | |
| .mpc | Musepack Compressed Audio File | Average | |
| .mpga | MPEG-1 Layer 3 Audio File | Average | |
| .mpu | MPEG Layer 3 Audio File | Uncommon | |
| .mp_ | Mobile Phone Sound File | Average | |
| .msv | Memory Stick Voice File | Uncommon | |
| .mt2 | MadTracker 2 Module | Uncommon | |
| .mte | MadTracker 2 Envelope | Average | |
| .mti | MadTracker Instrument | Average | |
| .mtm | MultiTracker Module | Average | |
| .mtp | MadTracker 2 Pattern | Average | |
| .mts | MadTracker 2 Sample File | Average | |
| .mus | Finale Notation File Format | Average | |
| .mws | MWave DSP Synth Instrument Extract | Rare | |
| .mzp | Mozart Percussion File | Uncommon | |
| .nap | Napster Secured Music File | Average | |
| .nki | KONTAKT Instrument File | Average | |
| .nra | Nero Audio Compilation | Average | |
| .nrt | Nokia Ringtone | Average | |
| .nsa | Nullsoft Streaming Audio File | Average | |
| .nsf | NES Sound Format File | Average | |
| .nst | NoiseTracker Module | Average | |
| .ntn | NOTION Song File | Average | |
| .nwc | NoteWorthy Composer File | Average | |
| .odm | OverDrive Media File | Average | |
| .oga | Ogg Vorbis Audio File | Average | |
| .ogg | Ogg Vorbis Compressed Audio File | Common | |
| .okt | Oktalyzer Module | Average | |
| .oma | Sony OpenMG Music File | Average | |
| .omf | Open Media Framework File | Common | |
| .omg | OpenMG Audio File | Average | |
| .omx | OtsAV Media Library Information File | Average | |
| .ots | OtsAV Album File | Average | |
| .ove | Overture Musical Score | Average | |
| .pac | SBStudio II Song File | Uncommon | |
| .pat | Gravis UltraSound GF1 Patch File | Rare | |
| .pbf | Pinnacle Sample Bank | Average | |
| .pca | Perfect Clarity Audio | Average | |
| .pcg | Korg Instrument Bank File | Average | |
| .pcm | Pulse Code Modulation | Average | |
| .peak | Steinberg Peak File | Average | |
| .phy | PhyMod Physical Modeling Data | Average | |
| .pk | Audition Peak File | Average | |
| .pla | Sansa Playlist File | Average | |
| .pls | Audio Playlist | Average | |
| .pna | PhatNoise Audio File | Average | |
| .prg | WAVmaker Program File | Average | |
| .prg | Akai MPC2000 Program File | Average | |
| .psf | Portable Sound File | Average | |
| .psm | Protracker Studio Module | Average | |
| .ptf | Pro Tools 7 Session File | Common | |
| .ptm | PolyTracker Module | Average | |
| .pts | Pro Tools Session | Average | |
| .pvc | Panasonic VM1 Voice File | Average | |
| .qcp | PureVoice Audio File | Average | |
| .r | Right Audio Channel File | Uncommon | |
| .r1m | RealOne Streaming Media File | Average | |
| .ra | Real Audio File | Very Common | |
| .ram | Real Audio Media | Common | |
| .raw | Raw Audio Data | Average | |
| .rax | Real Music Store Audio File | Average | |
| .rbs | Rebirth Song File | Average | |
| .rex | ReCycle Loop File | Average | |
| .rfl | Reason ReFill Sound Bank | Average | |
| .rmf | Rich Music Format | Average | |
| .rmi | RMID MIDI File | Average | |
| .rmj | Real Media Jukebox Audio File | Average | |
| .rmm | RAM Meta File | Uncommon | |
| .rmx | RealJukebox Format | Average | |
| .rng | Nokia Composer Ringtone | Average | |
| .rns | Reason Song File | Common | |
| .rol | Ad Lib Synthesized Instrument | Average | |
| .rsn | Reason Project File | Average | |
| .rso | NXT Brick Audio File | Average | |
| .rti | Real Tracker Instrument | Average | |
| .rtm | Real Tracker Module | Average | |
| .rts | Real Tracker Sample | Average | |
| .s3i | Scream Tracker 3 Instrument | Average | |
| .s3m | ScreamTracker 3 Module | Uncommon | |
| .saf | Secure Audio File | Average | |
| .sam | MOD Edit Sample File | Average | |
| .sb | Signed Byte Audio File | Rare | |
| .sbi | Sound Blaster Instrument | Average | |
| .sbk | E-MU SoundFont Sound Bank | Uncommon | |
| .sc2 | Sample Cell II Instrument Definition | Average | |
| .sd | Sound Designer Audio File | Average | |
| .sd | ESPS Sampled Data File | Average | |
| .sd2 | Sound Designer II File | Average | |
| .sds | MIDI Sample Dump Standard File | Average | |
| .sdx | Sample MIDI Dump Exchange | Average | |
| .seg | Eragon Audio File | Rare | |
| .ses | Audition Session | Average | |
| .sf | IRCAM Sound File | Average | |
| .sf2 | SoundFont 2 Sound Bank | Average | |
| .sfk | Sound Forge Audio Peak File | Average | |
| .sfl | Sound Forge Sound Data File | Average | |
| .shn | Shorten Compressed Audio File | Average | |
| .sib | Sibelius Score | Common | |
| .sid | Commodore 64 Music File | Average | |
| .sid | SID Audio File | Average | |
| .smf | Standard MIDI File | Average | |
| .smp | SampleVision Audio Sample Format | Average | |
| .snd | Sound File | Common | |
| .snd | Macintosh Sound Resource | Average | |
| .snd | Akai MPC Sample | Uncommon | |
| .sng | MIDI Song File | Average | |
| .sou | SBStudio II Sound File | Average | |
| .sppack | SPPack Sound Sample | Average | |
| .sprg | Synclavier Program File | Average | |
| .spx | Ogg Vorbis Speex File | Uncommon | |
| .sseq | Synclavier Sequence File | Average | |
| .ssnd | Synclavier Sound File | Average | |
| .stm | Scream Tracker 2 Module | Average | |
| .stx | Scream Tracker Music Interface Kit File | Average | |
| .sty | Yamaha/Korg Keyboard Style | Uncommon | |
| .svx | 8SVX Sound File | Average | |
| .sw | Signed Word Audio File | Average | |
| .swa | ShockWave Audio | Average | |
| .syh | Synchomatic Instrument | Average | |
| .syw | Yamaha SY99/SY85 Audio File | Average | |
| .syx | MIDI System Exclusive Message | Average | |
| .td0 | Akai Teledisk Sound Library | Average | |
| .tfmx | Final Music System Tracker Module | Average | |
| .thx | Amiga THX Tracker Music File | Average | |
| .toc | PSP Audio File | Uncommon | |
| .tsp | TrueSpeech Audio File | Average | |
| .txw | Yamaha TX16W Audio File | Average | |
| .u | AU Audio File | Average | |
| .ub | Unsigned Byte Audio File | Uncommon | |
| .ulaw | Raw u-Law Audio File | Uncommon | |
| .ult | UltraTracker Module | Average | |
| .ulw | u-Law Audio File | Rare | |
| .uni | MikMod UniMOD Module | Average | |
| .usf | Nintendo 64 Music File | Average | |
| .usflib | Nintendo 64 Song Library | Average | |
| .uw | Unsigned Word Audio File | Average | |
| .uwf | UltraTracker Wave File | Average | |
| .vag | PlayStation Compressed Sound File | Average | |
| .val | Olympus Voice Recording | Rare | |
| .vc3 | VSampler Soundbank File | Average | |
| .vmd | Covox Raw Sample | Average | |
| .vmf | Vocaltec Media File | Average | |
| .vmf | Covox Speech Thing Sample | Average | |
| .voc | Creative Labs Audio File | Average | |
| .voi | Voyetra Voice File | Average | |
| .vox | VoxWare Dialogic Audio File | Average | |
| .vpl | Karaoke Player Playlist | Average | |
| .vpm | Garmin Voice File | Common | |
| .vqf | TwinVQ Audio File | Average | |
| .vrf | Ventrilo Audio Recording | Average | |
| .vyf | Samsung Digital Voice Recorder File | Average | |
| .w01 | Yamaha SY Series Wave File | Average | |
| .wav | WAVE Audio File | Very Common | |
| .wav | DTS-WAV File | Uncommon | |
| .wave | WAVE Sound File | Average | |
| .wax | Windows Media Audio Redirect | Average | |
| .wfb | WaveFront Sound Bank | Average | |
| .wfd | WaveFront Drum Kit File | Average | |
| .wfp | WaveFront Program File | Average | |
| .wma | Windows Media Audio File | Very Common | |
| .wow | Grave Composer Music Module | Average | |
| .wpk | Nero Wave Editor File | Average | |
| .wproj | Wwise Project | Average | |
| .wrk | Cakewalk Music Project | Average | |
| .wus | WUTG Tagged Audio File | Average | |
| .wut | WUTG Tag File | Average | |
| .wv | WavPack Audio File | Average | |
| .wvc | WavPack Correction File | Average | |
| .wwu | Wwise Work Unit | Average | |
| .xfs | eRacer Sound File | Average | |
| .xi | Fasttracker 2 Extended Instrument File | Average | |
| .xm | Fasttracker 2 Extended Module | Average | |
| .xmf | Extensible Music File | Average | |
| .xmi | Extended MIDI File | Average | |
| .xmz | FastTracker 2 Extended Module | Uncommon | |
| .xp | Fastracker 2 Pattern | Average | |
| .xrns | Renoise Song File | Average | |
| .xsb | XACT Sound Bank | Uncommon | |
| .xspf | XSPF Playlist File | Average | |
| .xt | Fastracker 2 Track | Average | |
| .xwb | XACT Wave Bank | Uncommon | |
| .zvd | ZyXEL Voice File | Average | |
| .zvr | SAFA Media Audio File | Rare |
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