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Audio Codec's Two Character Codes (TwoCC)



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182 TwoCC, information was refreshed at 9 March 2005
TwoCC (hex)Description
0x0000Microsoft Unknown Wave Format
0x0001Microsoft PCM Format
0x0002Microsoft ADPCM Format
0x0003IEEE Float
0x0004Compaq Computer VSELP (codec for Windows CE 2.0 devices)
0x0005IBM CVSD
0x0006Microsoft ALAW (CCITT A-Law)
0x0007Microsoft MULAW (CCITT u-Law)
0x0008Microsoft DTS
0x0009Microsoft DRM
0x0010OKI ADPCM
0x0011Intel DVI ADPCM (IMA ADPCM)
0x0012Videologic MediaSpace ADPCM
0x0013Sierra Semiconductor ADPCM
0x0014Antex Electronics G.723 ADPCM
0x0015DSP Solutions DigiSTD
0x0016DSP Solutions DigiFIX
0x0017Dialogic OKI ADPCM
0x0018MediaVision ADPCM
0x0019Hewlett-Packard CU codec
0x0020Yamaha ADPCM
0x0021Speech Compression SONARC
0x0022DSP Group True Speech
0x0023Echo Speech EchoSC1
0x0024Audiofile AF36
0x0025Audio Processing Technology APTX
0x0026AudioFile AF10
0x0027Prosody 1612 codec for CTI Speech Card
0x0028Merging Technologies S.A. LRC
0x0030Dolby Labs AC2
0x0031Microsoft GSM 6.10
0x0032MSNAudio
0x0033Antex Electronics ADPCME
0x0034Control Resources VQLPC
0x0035DSP Solutions DigiREAL
0x0036DSP Solutions DigiADPCM
0x0037Control Resources CR10
0x0038Natural MicroSystems VBXADPCM
0x0039Roland RDAC (Crystal Semiconductor IMA ADPCM)
0x003AEcho Speech EchoSC3
0x003BRockwell ADPCM
0x003CRockwell Digit LK
0x003DXebec Multimedia Solutions
0x0040Antex Electronics G.721 ADPCM
0x0041Antex Electronics G.728 CELP
0x0042Microsoft MSG723
0x0043IBM AVC ADPCM
0x0045ITU-T G.726 ADPCM
0x0050MPEG-1 layer 1, 2
0x0052InSoft RT24 (ACM codec is an alternative codec)
0x0053InSoft PAC
0x0055MPEG-1 Layer 3 (MP3)
0x0059Lucent G.723
0x0060Cirrus Logic
0x0061ESS Technology ESPCM / Duck DK4 ADPCM
0x0062Voxware file-mode codec / Duck DK3 ADPCM
0x0063Canopus Atrac
0x0064APICOM G.726 ADPCM
0x0065APICOM G.722 ADPCM
0x0066Microsoft DSAT
0x0067Microsoft DSAT Display
0x0069Voxware Byte Aligned (bitstream-mode codec)
0x0070Voxware AC8 (Lernout & Hauspie CELP 4.8 kbps)
0x0071Voxware AC10 (Lernout & Hauspie CBS 8kbps)
0x0072Voxware AC16 (Lernout & Hauspie CBS 12kbps)
0x0073Voxware AC20 (Lernout & Hauspie CBS 16kbps)
0x0074Voxware MetaVoice (file and stream oriented)
0x0075Voxware MetaSound (file and stream oriented)
0x0076Voxware RT29HW
0x0077Voxware VR12
0x0078Voxware VR18
0x0079Voxware TQ40
0x0080Softsound
0x0081Voxware TQ60
0x0082Microsoft MSRT24 (ACM codec is an alternative codec)
0x0083AT&T Labs G.729A
0x0084Motion Pixels MVI MV12
0x0085DataFusion Systems G.726
0x0086DataFusion Systems GSM610
0x0088Iterated Systems ISIAudio
0x0089Onlive
0x0091Siemens Business Communications SBC24
0x0092Sonic Foundry Dolby AC3 SPDIF
0x0093MediaSonic G.723
0x0094Aculab PLC Prosody 8KBPS
0x0097ZyXEL ADPCM
0x0098Philips LPCBB
0x0099Studer Professional Audio AG Packed
0x00A0Malden Electronics PHONYTALK
0x00FFAAC
0x0100Rhetorex ADPCM
0x0101IBM mu-law / BeCubed Software IRAT
0x0102IBM A-law
0x0103IBM AVC ADPCM
0x0111Vivo G.723
0x0112Vivo Siren
0x0123Digital G.723
0x0125Sanyo LD ADPCM
0x0130Sipro Lab Telecom ACELP.net
0x0131Sipro Lab Telecom ACELP.4800
0x0132Sipro Lab Telecom ACELP.8V3
0x0133Sipro Lab Telecom ACELP.G.729
0x0134Sipro Lab Telecom ACELP.G.729A
0x0135Sipro Lab Telecom ACELP.KELVIN
0x0140Dictaphone G.726 ADPCM
0x0150Qualcomm PureVoice
0x0151Qualcomm HalfRate
0x0155Ring Zero Systems TUB GSM
0x0160Windows Media Audio V1 / DivX audio (WMA)
0x0161Windows Media Audio V2 V7 V8 V9 / DivX audio (WMA) / Alex AC3 Audio
0x0162Windows Media Audio Professional V9
0x0163Windows Media Audio Lossless V9
0x0170UNISYS NAP ADPCM
0x0171UNISYS NAP ULAW
0x0172UNISYS NAP ALAW
0x0173UNISYS NAP 16K
0x0200Creative Labs ADPCM
0x0202Creative Labs FastSpeech8
0x0203Creative Labs FastSpeech10
0x0210UHER Informatic ADPCM
0x0215Ulead DV ACM
0x0216Ulead DV ACM
0x0220Quarterdeck
0x0230I-link Worldwide ILINK VC
0x0240Aureal Semiconductor RAW SPORT
0x0241ESST AC3
0x0250Interactive Products HSX
0x0251Interactive Products RPELP
0x0260Consistent Software CS2
0x0270Sony ATRAC3 (SCX, same as MiniDisk LP2)
0x0300Fujitsu FM TOWNS SND
0x0400BTV Digital (Brooktree digital audio format)
0x0401Intel Music Coder (IMC)
0x0402Ligos Indeo Audio
0x0450QDesign Music
0x0680AT&T Labs VME VMPCM
0x0681AT&T Labs TPC
0x0700YMPEG Alpha (dummy for MPEG-2 compressor)
0x08AEClearJump LiteWave
0x1000Olivetti GSM
0x1001Olivetti ADPCM
0x1002Olivetti CELP
0x1003Olivetti SBC
0x1004Olivetti OPR
0x1100Lernout & Hauspie codec
0x1101Lernout & Hauspie CELP codec
0x1102Lernout & Hauspie SBC codec
0x1103Lernout & Hauspie SBC codec
0x1104Lernout & Hauspie SBC codec
0x1400Norris Communication
0x1401AT&T Labs ISIAudio
0x1500AT&T Labs Soundspace Music Compression
0x181CVoxWare RT24 speech codec
0x181ELucent elemedia AX24000P Music codec
0x1C07Lucent SX8300P speech codec
0x1C0CLucent SX5363S G.723 compliant codec
0x1F03CUseeMe DigiTalk (ex-Rocwell)
0x1FC4NCT Soft ALF2CD ACM
0x2000Dolby AC3 / FAST Multimedia AG DVM
0x2001Dolby DTS (Digital Theater System)
0x2002RealAudio 1 / 2 14.4
0x2003RealAudio 1 / 2 28.8
0x2004RealAudio G2 / 8 Cook (low bitrate)
0x2005RealAudio 3 / 4 / 5 Music (DNET)
0x2006RealAudio 10 AAC (RAAC)
0x2007RealAudio 10 AAC+ (RACP)
0x3313makeAVIS (ffvfw fake AVI sound from AviSynth scripts)
0x4143Divio MPEG-4 AAC audio
0x434CLEAD Speech
0x564CLEAD Vorbis
0x674fOgg Vorbis (mode 1)
0x6750Ogg Vorbis (mode 2)
0x6751Ogg Vorbis (mode 3)
0x676fOgg Vorbis (mode 1+)
0x6770Ogg Vorbis (mode 2+)
0x6771Ogg Vorbis (mode 3+)
0x7A21GSM-AMR (CBR, no SID)
0x7A22GSM-AMR (VBR, including SID)
0xDFACDebugMode SonicFoundry Vegas FrameServer ACM Codec
0xF1ACFree Lossless Audio Codec FLAC
0xFFFEExtensible wave format
0xFFFFIn Development / Unregistered
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