Audio File Signatures

Audio and sound formats including MP3, WAV, FLAC, AAC, Ogg, and MIDI, and how to identify each by its binary header.

45 formats in this category

.aac Safe

MPEG-4 Advanced Audio Coding

FF F1

.ac3 Safe

AC3

0B 77

.acd Safe

Sonic Foundry Acid Music File

72 69 66 66

.aif Safe

Audio Interchange File Format (AIFF)

46 4F 52 4D

.aifc Safe

AIFC

46 4F 52 4D 2E 2E 2E 2E 41 49 46 46

.aiff Safe

Audio Interchange File Format

46 4F 52 4D

.amr Safe

Adaptive Multi-Rate ACELP

23 21 41 4D 52

.au Safe

NeXT/Sun Microsystems µ-Law audio file

2E 73 6E 64

.caf Safe

Apple Core Audio File

63 61 66 66 00 00

.csd Safe

Csound music file

3C 43 73 6F 75 6E 64 53 79 6E 74 68 65 73 69 7A

.dsf Safe

DSD Storage Facilityaudio file

44 53 44 20

.flac Safe

Free Lossless Audio Codec file

66 4C 61 43

.gslib Safe

GSLIB

50 53 46

.kar Safe

KAR

4D 54 68 64

.koz Safe

Sprint Music Store audio file

49 44 33 03 00 00 00

.m2a Safe

M2A

FF F2

.m3a Safe

M3A

FF F2

.m3u Safe

M3U

23 45 58 54 4D 33 55 0D 0A

.m4a Safe

Apple Lossless Audio Codec file

66 74 79 70 4D 34 41 20

.m4b Safe

M4B

66 74 79 70 4D 34 41 20

.mid Safe

Musical Instrument Digital Interface

4D 54 68 64

.midi Safe

Musical Instrument Digital Interface

4D 54 68 64

.minigsf Safe

MINIGSF

50 53 46

.minipsf Safe

MINIPSF

50 53 46

.minipsf1 Safe

MINIPSF1

50 53 46

.mod Safe

MOD

45 78 74 65 6E 64 65 64 20 4D 6F 64 75 6C 65 3A

.mp2 Safe

MP2

FF F2

.mp2a Safe

MP2A

FF F2

.mp3 Safe

MPEG-1 Audio Layer 3

49 44 33

.mp4a Safe

MP4A

66 74 79 70 4D 34 41 20

.mpga Safe

MPGA

FF F2

.oga Safe

Ogg Vorbis Codec compressed Multimedia file

4F 67 67 53

.ogg Safe

Ogg Vorbis Codec compressed Multimedia file

4F 67 67 53 00 02 00 00 00 00 00 00 00 00

.opus Safe

OPUS

4F 67 67 53 00 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 4F 70 75 73 48 65 61 64

.psf1 Safe

PSF1

50 53 46

.psflib Safe

PSFLIB

50 53 46

.ra Safe

RealAudio streaming media file

2E 72 61 FD

.ram Safe

RealMedia metafile

2E 72 61 FD

.rmi Safe

Resource Interchange File Format --Windows MusicalInstrument Digital Interface file

4D 54 68 64

.sap Safe

SAP

53 41 50 0D 0A

.sib Safe

Sibelius Music - Score file

0F 53 49 42 45 4C 49 55 53

.snd Safe

SND

2E 73 6E 64

.spx Safe

SPX

4F 67 67 53 00 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 53 70 65 65 78 20 20 20

.wav Safe

Resource Interchange File Format --Audio for Windowsfile

52 49 46 46 2E 2E 2E 2E 57 41 56 45

.wma Safe

Microsoft Windows Media Audio/Video File

30 26 B2 75 8E 66 CF 11