TwoCC: Difference between revisions

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The TwoCC is the audio counterpart to the [[:Category:Video FourCCs|video FourCC]]. It is the audio format identifier used in the [[RIFF]] based multimedia formats by [[Microsoft]] ([[WAV]] and [[AVI]]). The TwoCC is 2 bytes long and stored in little endian format on disk. You can register your TwoCC with Microsoft but it seems that only some companies perform this process.
The TwoCC is the audio counterpart to the [[:Category:Video FourCCs|video FourCC]]. It is the audio format identifier used in the [[RIFF]] based multimedia formats by [[Microsoft]] ([[WAV]] and [[AVI]]). The TwoCC is 2 bytes long and stored in little endian format on disk. You can register your TwoCC with Microsoft but it seems that only some companies perform this process.


* 0x0000 Microsoft Unknown Wave Format
If you need help finding any codec mail me compn@ffmpeg.org
* 0x0001 Microsoft PCM Format
* 0x0002 Microsoft ADPCM Format
* 0x0003 IEEE Float
* 0x0004 Compaq Computer VSELP (codec for Windows CE 2.0 devices)
* 0x0005 IBM CVSD
* 0x0006 Microsoft ALAW (CCITT A-Law)
* 0x0007 Microsoft MULAW (CCITT u-Law)
* 0x0008 Microsoft DTS
* 0x0009 Microsoft DRM
* 0x000A Microsoft WMSpeech
* 0x000B Microsoft Windows Media RT Voice 
* 0x0010 OKI ADPCM
* 0x0011 Intel DVI ADPCM (IMA ADPCM)
* 0x0012 Videologic MediaSpace ADPCM
* 0x0013 Sierra Semiconductor ADPCM
* 0x0014 Antex Electronics G.723 ADPCM
* 0x0015 DSP Solutions DigiSTD
* 0x0016 DSP Solutions DigiFIX
* 0x0017 Dialogic OKI ADPCM
* 0x0018 MediaVision ADPCM
* 0x0019 Hewlett-Packard CU codec
* 0x001A Hewlett-Packard HP DYNAMIC VOICE
* 0x0020 Yamaha ADPCM
* 0x0021 Speech Compression SONARC
* 0x0022 DSP Group True Speech
* 0x0023 Echo Speech EchoSC1
* 0x0024 Audiofile AF36
* 0x0025 Audio Processing Technology APTX
* 0x0026 AudioFile AF10
* 0x0027 Prosody 1612 codec for CTI Speech Card
* 0x0028 Merging Technologies S.A. LRC
* 0x0030 Dolby Labs AC2
* 0x0031 Microsoft GSM 6.10
* 0x0032 MSNAudio
* 0x0033 Antex Electronics ADPCME
* 0x0034 Control Resources VQLPC
* 0x0035 DSP Solutions DigiREAL
* 0x0036 DSP Solutions DigiADPCM
* 0x0037 Control Resources CR10
* 0x0038 Natural MicroSystems VBXADPCM
* 0x0039 Roland RDAC (Crystal Semiconductor IMA ADPCM)
* 0x003A Echo Speech EchoSC3
* 0x003B Rockwell ADPCM
* 0x003C Rockwell Digit LK
* 0x003D Xebec Multimedia Solutions
* 0x0040 Antex Electronics G.721 ADPCM
* 0x0041 Antex Electronics G.728 CELP
* 0x0042 Microsoft GSM723
* 0x0043 IBM AVC ADPCM
* 0x0045 ITU-T G.726 ADPCM
* 0x0050 MPEG-1 layer 1, 2
* 0x0052 InSoft RT24 (ACM codec is an alternative codec)
* 0x0053 InSoft PAC
* 0x0055 MPEG-1 Layer 3 (MP3)
* 0x0057 AMR-NB
* 0x0058 AMR-WB
* 0x0059 Lucent G.723
* 0x0060 Cirrus Logic
* 0x0061 ESS Technology ESPCM / Duck DK4 ADPCM
* 0x0062 Voxware file-mode codec / Duck DK3 ADPCM
* 0x0063 Canopus Atrac
* 0x0064 APICOM G.726 ADPCM
* 0x0065 APICOM G.722 ADPCM
* 0x0066 Microsoft DSAT
* 0x0067 Microsoft DSAT Display
* 0x0069 Voxware Byte Aligned (bitstream-mode codec)
* 0x0070 Voxware AC8 (Lernout & Hauspie CELP 4.8 kbps)
* 0x0071 Voxware AC10 (Lernout & Hauspie CBS 8kbps)
* 0x0072 Voxware AC16 (Lernout & Hauspie CBS 12kbps)
* 0x0073 Voxware AC20 (Lernout & Hauspie CBS 16kbps)
* 0x0074 Voxware MetaVoice (file and stream oriented)
* 0x0075 Voxware MetaSound (file and stream oriented)
* 0x0076 Voxware RT29HW
* 0x0077 Voxware VR12
* 0x0078 Voxware VR18
* 0x0079 Voxware TQ40
* 0x007A Voxware SC3
* 0x007B Voxware SC3
* 0x0080 Softsound
* 0x0081 Voxware TQ60
* 0x0082 Microsoft MSRT24 (ACM codec is an alternative codec)
* 0x0083 AT&T Labs G.729A
* 0x0084 Motion Pixels MVI MV12
* 0x0085 DataFusion Systems G.726
* 0x0086 DataFusion Systems GSM610
* 0x0088 Iterated Systems ISIAudio
* 0x0089 Onlive
* 0x008A Multitude, Inc. FT SX20
* 0x008B Infocom ITS A/S G.721 ADPCM
* 0x008C Convedia G729
* 0x008D Not specified  congruency, Inc.
* 0x0091 Siemens Business Communications SBC24
* 0x0092 Sonic Foundry Dolby AC3 SPDIF
* 0x0093 MediaSonic G.723
* 0x0094 Aculab PLC Prosody 8KBPS
* 0x0097 ZyXEL ADPCM
* 0x0098 Philips LPCBB
* 0x0099 Studer Professional Audio AG Packed
* 0x00A0 Malden Electronics PHONYTALK
* 0x00A1 Racal Recorder GSM
* 0x00A2 Racal Recorder G720.a
* 0x00A3 Racal G723.1
* 0x00A4 Racal Tetra ACELP
* 0x00B0 NEC AAC NEC Corporation
* 0x00E1        Microsoft ADPCM
* 0x00FF AAC
* 0x0100 Rhetorex ADPCM
* 0x0101 IBM mu-law / BeCubed Software IRAT
* 0x0102 IBM A-law
* 0x0103 IBM AVC ADPCM
* 0x0111 Vivo G.723
* 0x0112 Vivo Siren
* 0x0120 Philips Speech Processing CELP
* 0x0121 Philips Speech Processing GRUNDIG
* 0x0123 Digital G.723
* 0x0125 Sanyo LD ADPCM
* 0x0130 Sipro Lab Telecom ACELP.net
* 0x0131 Sipro Lab Telecom ACELP.4800
* 0x0132 Sipro Lab Telecom ACELP.8V3
* 0x0133 Sipro Lab Telecom ACELP.G.729
* 0x0134 Sipro Lab Telecom ACELP.G.729A
* 0x0135 Sipro Lab Telecom ACELP.KELVIN
* 0x0136 VoiceAge AMR
* 0x0140 Dictaphone G.726 ADPCM
* 0x0150 Qualcomm PureVoice
* 0x0151 Qualcomm HalfRate
* 0x0155 Ring Zero Systems TUB GSM
* 0x0160 Windows Media Audio V1 / DivX audio (WMA)
* 0x0161 Windows Media Audio V2 V7 V8 V9 / DivX audio (WMA) / Alex AC3 Audio
* 0x0162 Windows Media Audio Professional V9
* 0x0163 Windows Media Audio Lossless V9
* 0x0164 WMA Pro over S/PDIF
* 0x0170 UNISYS NAP ADPCM
* 0x0171 UNISYS NAP ULAW
* 0x0172 UNISYS NAP ALAW
* 0x0173 UNISYS NAP 16K
* 0x0174 MM SYCOM ACM SYC008    SyCom Technologies
* 0x0175 MM SYCOM ACM SYC701 G726L      SyCom Technologies
* 0x0176 MM SYCOM ACM SYC701 CELP54      SyCom Technologies
* 0x0177 MM SYCOM ACM SYC701 CELP68      SyCom Technologies
* 0x0178 Knowledge Adventure ADPCM
* 0x0180 Fraunhofer IIS MPEG2AAC
* 0x0190 Digital Theater Systems DTS DS
* 0x0200 Creative Labs ADPCM
* 0x0202 Creative Labs FastSpeech8
* 0x0203 Creative Labs FastSpeech10
* 0x0210 UHER Informatic ADPCM
* 0x0215 Ulead DV ACM
* 0x0216 Ulead DV ACM
* 0x0220 Quarterdeck
* 0x0230 I-link Worldwide ILINK VC
* 0x0240 Aureal Semiconductor RAW SPORT
* 0x0241 ESST AC3
* 0x0250 Interactive Products HSX
* 0x0251 Interactive Products RPELP
* 0x0260 Consistent Software CS2
* 0x0270 Sony ATRAC3 (SCX, same as MiniDisk LP2)
* 0x0271 Sony SCY
* 0x0272 Sony ATRAC3
* 0x0273 Sony SPC
* 0x0280 TELUM  Telum Inc.
* 0x0281 TELUMIA Telum Inc.
* 0x0285 Norcom Voice Systems ADPCM  Norcom Electronics Corporation
* 0x0300 Fujitsu FM TOWNS SND
* 0x0301 Not specified  Fujitsu Corporation
* 0x0302 Not specified  Fujitsu Corporation
* 0x0303 Not specified  Fujitsu Corporation
* 0x0304 Not specified  Fujitsu Corporation
* 0x0305 Not specified  Fujitsu Corporation
* 0x0306 Not specified  Fujitsu Corporation
* 0x0307 Not specified  Fujitsu Corporation
* 0x0308 Not specified  Fujitsu Corporation
* 0x0350 DEVELOPMENT    Micronas Semiconductors, Inc.
* 0x0351 Micronas Semiconductors, Inc. CELP833
* 0x0400 BTV Digital (Brooktree digital audio format)
* 0x0401 Intel Music Coder (IMC)
* 0x0402 Ligos Indeo Audio
* 0x0450 QDesign Music
* 0x0500 On2 VP7 On2 Technologies AVC Audio
* 0x0501 On2 VP6 On2 Technologies
* 0x0680 AT&T Labs VME VMPCM
* 0x0681 AT&T Labs TPC
* 0x0700 YMPEG Alpha (dummy for MPEG-2 compressor)
* 0x08AE ClearJump LiteWave (lossless)
* 0x1000 Olivetti GSM
* 0x1001 Olivetti ADPCM
* 0x1002 Olivetti CELP
* 0x1003 Olivetti SBC
* 0x1004 Olivetti OPR
* 0x1100 Lernout & Hauspie codec
* 0x1101 Lernout & Hauspie CELP codec
* 0x1102 Lernout & Hauspie SBC codec
* 0x1103 Lernout & Hauspie SBC codec
* 0x1104 Lernout & Hauspie SBC codec
* 0x1400 Norris Communication
* 0x1401 AT&T Labs ISIAudio
* 0x1500 AT&T Labs Soundspace Music Compression
* 0x181C VoxWare RT24 speech codec
* 0x181E Lucent elemedia AX24000P Music codec
* 0x1971 Sonic Foundry LOSSLESS 
* 0x1979 Innings Telecom Inc. ADPCM 
* 0x1C07 Lucent SX8300P speech codec
* 0x1C0C Lucent SX5363S G.723 compliant codec
* 0x1F03 CUseeMe DigiTalk (ex-Rocwell)
* 0x1FC4 NCT Soft ALF2CD ACM
* 0x2000 Dolby AC3 / FAST Multimedia AG DVM
* 0x2001 Dolby DTS (Digital Theater System)
* 0x2002 RealAudio 1 / 2 14.4
* 0x2003 RealAudio 1 / 2 28.8
* 0x2004 RealAudio G2 / 8 Cook (low bitrate)
* 0x2005 RealAudio 3 / 4 / 5 Music (DNET)
* 0x2006 RealAudio 10 AAC (RAAC)
* 0x2007 RealAudio 10 AAC+ (RACP)
* 0x2500 Reserved range to 0x2600  Microsoft
* 0x3313 makeAVIS (ffvfw fake AVI sound from AviSynth scripts)
* 0x4143 Divio MPEG-4 AAC audio
* 0x4201 Nokia adaptive multirate        Nokia Mobile Phones
* 0x4243 Divio's G726    Divio, Inc.
* 0x434C LEAD Speech
* 0x564C LEAD Vorbis
* 0x5756 WavPack Audio
* 0x674f Ogg Vorbis (mode 1)
* 0x6750 Ogg Vorbis (mode 2)
* 0x6751 Ogg Vorbis (mode 3)
* 0x676f Ogg Vorbis (mode 1+)
* 0x6770 Ogg Vorbis (mode 2+)
* 0x6771 Ogg Vorbis (mode 3+)
* 0x7000 3COM NBX  3Com Corporation
* 0x706D FAAD AAC
* 0x77A1        The True Audio
* 0x7A21 GSM-AMR (CBR, no SID)
* 0x7A22 GSM-AMR (VBR, including SID)
* 0xA100 Comverse Infosys Ltd. G723 1 
* 0xA101 Comverse Infosys Ltd. AVQSBC
* 0xA102 Comverse Infosys Ltd. OLDSBC
* 0xA103 Symbol Technology's G729A  Symbol Technologies Canada
* 0xA104 VoiceAge AMR WB VoiceAge Corporation
* 0xA105 Ingenient Technologies Inc. G726
* 0xA106 ISO/MPEG-4 advanced audio Coding       
* 0xA107 Encore Software Ltd's G726
* 0xA109 Speex ACM Codec xiph.org
* 0xC0CC        GigaLink Audio Codec
* 0xDFAC DebugMode SonicFoundry Vegas FrameServer ACM Codec
* 0xe708 Unknown -
* 0xF1AC Free Lossless Audio Codec FLAC
* 0xFFFC VDOwave Audio
* 0xFFFE Extensible wave format
* 0xFFFF In Development / Unregistered


{| class="wikitable"
! TwoCC !! Description !! Vendor !! Filename(s) || Comment
|-
| 0x0000 || Microsoft Unknown Wave Format || || ||
|-
| 0x0001 || [[PCM#Microsoft_WAV.2FAVI.2FASF_Identifiers|Microsoft PCM Format]] || Microsoft || ||
|-
| 0x0002 || [[Microsoft_ADPCM|Microsoft ADPCM]] || Microsoft || msacm.msadpcm=msadp32.acm ||
|-
| 0x0003 || IEEE754 FLOAT || Microsoft || ||
|-
| 0x0004 || Compaq Computer VSELP || || || (codec for Windows CE 2.0 devices)
|-
| 0x0005 || IBM CVSD || IBM Corporation || ||
|-
| 0x0006 || [[PCM#Microsoft_WAV.2FAVI.2FASF_Identifiers|Microsoft CCITT G.711 (A-Law and u-Law)]] || Microsoft || msacm.msg711=msg711.acm ||
|-
| 0x0007 || [[PCM#Microsoft_WAV.2FAVI.2FASF_Identifiers|Microsoft CCITT G.711 (A-Law and u-Law)]] || Microsoft || msacm.msg711=msg711.acm ||
|-
| 0x0008 || Microsoft DTS || || ||
|-
| 0x0009 || Microsoft DRM || || ||
|-
| 0x000A || WMSpeech || Microsoft || ||
|-
| 0x000B || Windows Media RT Voice || Microsoft || ||
|-
| 0x0010 || [[Dialogic_IMA_ADPCM|OKI ADPCM]] || || ||
|-
| 0x0011 || [[Microsoft_IMA_ADPCM|IMA ADPCM]] || Microsoft || msacm.imaadpcm=imaadp32.acm ||
|-
| 0x0012 || Videologic MediaSpace ADPCM || || ||
|-
| 0x0013 || Sierra ADPCM || Sierra Semiconductor Corp || ||
|-
| 0x0014 || G723 ADPCM || Antex Electronics Corporation || ||
|-
| 0x0015 || DIGISTD || DSP Solutions, Inc. || ||
|-
| 0x0016 || DIGIFIX || DSP Solutions, Inc. || ||
|-
| 0x0017 || [[Dialogic_IMA_ADPCM|Dialogic OKI ADPCM]] || Dictaphone Corporation || okiadp32.acm ||
|-
| 0x0018 || MediaVision ADPCM || || ||
|-
| 0x0019 || CU CODEC Mobile Voice || Hewlett-Packard Company || mobileV.acm ||
|-
| 0x001A || Hewlett-Packard HP DYNAMIC VOICE || || ||
|-
| 0x0020 || [[Yamaha_ADPCM|Yamaha ADPCM]] || || ||
|-
| 0x0021 || Sonarc Speech Compression || || ||
|-
| 0x0022 || DSP Group TrueSpeech(TM) || DSP GROUP, INC. || msacm.trspch=tssoft32.acm ||
|-
| 0x0023 || ECHOSC1 || Echo Speech Corporation || ||
|-
| 0x0024 || Audiofile AF36 || Virtual Music, Inc. || ||
|-
| 0x0024 || Delrina DCC36 CODEC || Delrina (Canada) Corporation || DCC3632.ACM ||
|-
| 0x0025 || APTX || Audio Processing Technology || ||
|-
| 0x0026 || Audiofile AF10 || Virtual Music, Inc. || MSACM.AF10=AF10.ACM ||
|-
| 0x0027 || Prosody 1612 || || || CTI Speech Card Aculab plc
|-
| 0x0028 || LRC || Merging Technologies S.A. || ||
|-
| 0x0030 || Dolby Labs AC2 || || ||
|-
| 0x0031 || Microsoft GSM 6.10 || Microsoft || msacm.msgsm610=msgsm32.acm ||
|-
| 0x0032 || MSNAudio || Microsoft || MSACM.MSNAUDIO=msnaudio.acm ||
|-
| 0x0033 || Antex ADPCME || Antex Electronics Corporation || ||
|-
| 0x0034 || Control Res. VQLPC || Control Resources Limited || ||
|-
| 0x0035 || DigiReal || DSP Solutions, Inc. || ||
|-
| 0x0036 || DigiADPCM || DSP Solutions, Inc. || ||
|-
| 0x0037 || Control Res. CR10 || Control Resources Limited || ||
|-
| 0x0038 || NMS VBXADPCM || Natural MicroSystems || ||
|-
| 0x0039 || CS IMAADPCM Roland RDAC || Crystal Semiconductor || || IMA ADPCM
|-
| 0x003A || ECHOSC3 || Echo Speech Corporation || ||
|-
| 0x003B || Rockwell ADPCM || Rockwell International || DCCRKL32.ACM ||
|-
| 0x003C || Rockwell DIGITALK || Rockwell International || ||
|-
| 0x003D || XEBEC || Xebec Multimedia Solutions Limited || ||
|-
| 0x0040 || G721 ADPCM || Antex Electronics Corporation || ||
|-
| 0x0041 || G728 CELP || Antex Electronics Corporation || ||
|-
| 0x0042 || Microsoft G.723.1 || Microsoft || msacm.msg723=msg723.acm ||
|-
| 0x0043 || IBM AVC ADPCM || || ||
|-
| 0x0044 || MSG729 || Microsoft || ||
|-
| 0x0045 || ITU-T G.726 ADPCM || || ITIG726.acm Scg726.acm ||
|-
| 0x0050 || MPEG (MP1/MP2) || ISO/IEC || ||
|-
| 0x0050 || QDesign MPEG || QDesign Corporation || qmpeg.acm ||
|-
| 0x0052 || InSoft RT24 || || || (ACM codec is an alternative codec)
|-
| 0x0053 || PAC || InSoft, Inc. || ||
|-
| 0x0055 || MPEG Layer-3 Audio Codec || || msacm.l3ACM=l3codeca.acm ||
|-
| 0x0057 || AMR-NB || || ||
|-
| 0x0058 || AMR-WB || || ||
|-
| 0x0059 || Lucent G.723 || || ||
|-
| 0x0060 || Delrina Cirrus ALAW || Cirrus Logic || DCCCRS32.ACM ||
|-
| 0x0061 || ESS Technology ESPCM || || ||
|-
| 0x0061 || Duck DK4 ADPCM || The Duck Corporation || dk4bit32.acm ||
|-
| 0x0062 || Voxware File-Mode Codecs || Voxware, Inc. || msacm.voxacm160=vct3216.acm VDK32116.ACM VDK32118.ACM ||
|-
| 0x0062 || Duck DK3 ADPCM || The Duck Corporation || dk3b32.acm ||
|-
| 0x0063 || Canopus ATRAC || Canopus, co., Ltd. || ||
|-
| 0x0064 || G726 ADPCM || APICOM || ||
|-
| 0x0065 || G722 ADPCM || APICOM || ||
|-
| 0x0066 || DSAT || Microsoft || ||
|-
| 0x0067 || DSAT DISPLAY || Microsoft || ||
|-
| 0x0069 || Voxware v1.1.8 Bitstream-Mode Codecs || Voxware, Inc. || msacm.voxacm160=vct3216.acm VDK32118.ACM ||
|-
| 0x0069 || Xbox ADPCM || Microsoft || XBADPCM.ACM ||
|-
| 0x0070 || Voxware AC8 (Lernout & Hauspie CELP 4.8 kbps) || || lhacm.acm ||
|-
| 0x0071 || Voxware AC10 (Lernout & Hauspie CBS 8kbps) || || lhacm.acm ||
|-
| 0x0072 || Voxware AC16 (Lernout & Hauspie CBS 12kbps) || || lhacm.acm ||
|-
| 0x0073 || Voxware AC20 (Lernout & Hauspie CBS 16kbps) || || lhacm.acm ||
|-
| 0x0074 || Voxware MetaVoice || Voxware, Inc. || msacm.voxacm160=vct3216.acm VCT32150.acm ||
|-
| 0x0075 || Voxware RT29 Metasound || Voxware, Inc. || msacm.voxacm160=vct3216.acm ||
|-
| 0x0076 || Voxware RT29HW || || ||
|-
| 0x0077 || Voxware VR12 || || ||
|-
| 0x0078 || Voxware VR18 || || ||
|-
| 0x0079 || Voxware TQ40 || || ||
|-
| 0x007A || Voxware SC3 || || ||
|-
| 0x007B || Voxware SC3 || || ||
|-
| 0x0080 || Softsound || Softsound, Ltd. || ||
|-
| 0x0081 || Voxware TQ60 || || ||
|-
| 0x0082 || Microsoft MSRT24 || Microsoft || || (ACM codec is an alternative codec)
|-
| 0x0083 || G729A || AT&T Labs, Inc. || ||
|-
| 0x0084 || MVI MVI2 || Motion Pixels || ||
|-
| 0x0085 || DataFusion Systems G.726 || || ||
|-
| 0x0086 || DataFusion Systems GSM610 || || ||
|-
| 0x0088 || ISIAUDIO || Iterated Systems, Inc. || ||
|-
| 0x0089 || ONLIVE || OnLive! Technologies, Inc. || ||
|-
| 0x008A || MULTITUDE FT SX20 || Multitude, Inc. || ||
|-
| 0x008B || G.721 ADPCM || Infocom ITS A/S || ||
|-
| 0x008C || CONVEDIA G729 || Convedia Corporation || ||
|-
| 0x008D || Not specified || congruency, Inc. || ||
|-
| 0x0091 || SBC24 || Siemens Business Communications Sys. || ||
|-
| 0x0092 || Dolby AC3 SPDIF || Sonic Foundry || ||
|-
| 0x0093 || MediaSonic G.723 || || ||
|-
| 0x0093 || Symantec ZyXEL ADPCM || Symantec/Delrina (Canada) Corporation || DCCZYL32.ACM ||
|-
| 0x0094 || Prosody 8KBPS || Aculab plc || ||
|-
| 0x0097 || Zyxel ADPCM || ZyXEL Communications, Inc. || ||
|-
| 0x0098 || Philips LPCBB || Philips Speech Processing || SMLPCBB.ACM ||
|-
| 0x0099 || PACKED || Studer Professional Audio AG || ||
|-
| 0x00A0 || Malden PhonyTalk || Malden Electronics Ltd. || ||
|-
| 0x00A1 || Racal Recorder GSM || Racal Recorders || ||
|-
| 0x00A2 || Racal Recorder G720.a || Racal Recorders || ||
|-
| 0x00A3 || Racal G723.1 || Racal Recorders || ||
|-
| 0x00A4 || Racal Tetra ACELP || Racal Recorders || ||
|-
| 0x00B0 || NEC AAC || NEC Corporation || ||
|-
| 0x00E1 || Microsoft ADPCM || Microsoft || ||
|-
| 0x00f4 || WRPR codec || || ||
|-
| 0x00FF || AAC || || ||
|-
| 0x0100 || Rhetorex ADPCM || Rhetorex Inc. || rhetorex.acm ||
|-
| 0x0101 || IBM mu-law / BeCubed Software IRAT || || ||
|-
| 0x0102 || ALAW IBM a-law format || || ||
|-
| 0x0103 || ADPCM IBM AVC Adaptive Differential Pulse Code Modulation || || ||
|-
| 0x0111 || Vivo G.723 || Vivo Software || msacm.vivog723=vivog723.acm ||
|-
| 0x0112 || Vivo Siren || Vivo Software || msacm.vivog723=vivog723.acm ||
|-
| 0x0120 || PHILIPS CELP || Philips Speech Processing || smcelp32.acm ||
|-
| 0x0121 || PHILIPS GRUNDIG || Philips Speech Processing || ||
|-
| 0x0123 || DEC G723 || Digital Equipment Corporation Digital G.723 || ||
|-
| 0x0125 || Sanyo LD ADPCM || SANYO Electric Co., Ltd. || msacm.ldadpcm=LDADP32.acm ||
|-
| 0x0130 || Sipro Lab Telecom ACELP.net || Sipro Lab Telecom Inc. || msacm.sl_anet=sl_anet.acm ||
|-
| 0x0131 || Sipro Lab Telecom ACELP.4800 || Sipro Lab Telecom Inc. || ||
|-
| 0x0132 || Sipro Lab Telecom ACELP.8V3 || Sipro Lab Telecom Inc. || ||
|-
| 0x0133 || Sipro Lab Telecom ACELP.G.729 || Sipro Lab Telecom Inc. || ||
|-
| 0x0134 || Sipro Lab Telecom ACELP.G.729A || Sipro Lab Telecom Inc. || ||
|-
| 0x0135 || Sipro Lab Telecom ACELP.KELVIN || Sipro Lab Telecom Inc. || ||
|-
| 0x0136 || VOICEAGE AMR || VoiceAge Corporation || ||
|-
| 0x0140 || G726ADPCM || Dictaphone Corporation || ||
|-
| 0x0141 || CELP68 || Dictaphone Corporation || ||
|-
| 0x0142 || CELP54 || Dictaphone Corporation || ||
|-
| 0x0150 || Qualcomm PureVoice || || ||
|-
| 0x0151 || Qualcomm HalfRate || || ||
|-
| 0x0155 || TUB GSM 06.10 || Ring Zero Systems, Inc. || MSACM.RZSGSM=RZSGSM32.ACM ||
|-
| 0x0156 || TUB GSM 06.10 (USR) || Ring Zero Systems, Inc. || MSACM.RZSGSM=RZSGSM32.ACM ||
|-
| 0x0160 || Windows Media Audio || Microsoft || msacm.msaudio1=msaud32.acm ||
|-
| 0x0161 || Windows Media Audio V2 V7 V8 V9 / DivX audio (WMA) / Alex AC3 Audio || Microsoft || msacm.msaudio1=msaud32.acm ||
|-
| 0x0162 || Windows Media Audio 9 Professional || Microsoft, Inc. || ||
|-
| 0x0163 || Windows Media Audio 9 Lossless || Microsoft, Inc. || ||
|-
| 0x0164 || WMA Pro over S/PDIF || || ||
|-
| 0x0170 || UNISYS NAP ADPCM || Unisys Corporation || ||
|-
| 0x0171 || UNISYS NAP ULAW || Unisys Corporation || ||
|-
| 0x0172 || UNISYS NAP ALAW || Unisys Corporation || ||
|-
| 0x0173 || UNISYS NAP 16K || Unisys Corporation || ||
|-
| 0x0174 || MM SYCOM ACM SYC008 || SyCom Technologies || ||
|-
| 0x0175 || MM SYCOM ACM SYC701 G726L || SyCom Technologies || ||
|-
| 0x0176 || MM SYCOM ACM SYC701 CELP54 || SyCom Technologies || ||
|-
| 0x0177 || MM SYCOM ACM SYC701 CELP68 || SyCom Technologies || ||
|-
| 0x0178 || Knowledge Adventure ADPCM || || ||
|-
| 0x0180 || MPEG2AAC || Fraunhofer IIS || ||
|-
| 0x0190 || DTS DS || Digital Theater Systems, Inc. || ||
|-
| 0x0200 || Creative Labs ADPCM || Creative Technology Ltd || ctadp32.acm MSACM.WFM0200=WFM0200.ACM ||
|-
| 0x0202 || Creative Labs FastSpeech8 || Creative Technology Ltd || CTFS32.ACM MSACM.WFM0202=WFM0202.ACM || CTFS32.ACM has no implementation
|-
| 0x0203 || Creative Labs FastSpeech10 || Creative Technology Ltd || CTFS32.ACM MSACM.WFM0203=WFM0203.ACM || CTFS32.ACM has no implementation
|-
| 0x0210 || UHER ADPCM || UHER informatic GmbH || nvsadpcm.acm ||
|-
| 0x0215 || Ulead DV || || msacm.dvACM=dvacm.acm ||
|-
| 0x0216 || Ulead DV || Ulead Systems, Inc. || msacm.dvACM=Dvacm.acm ||
|-
| 0x0217 || Ulead MP3 || || msacm.ulmp3acm=ulmp3acm.acm || Warning: Codec is disabled
|-
| 0x0220 || Quarterdeck || Quarterdeck Corporation || ||
|-
| 0x0230 || I-Link VC || I-link Worldwide || ||
|-
| 0x0240 || RAW SPORT || Aureal Semiconductor || ||
|-
| 0x0241 || ESST AC3 || ESS Technology || ||
|-
| 0x0250 || IPI HSX || Interactive Products, Inc. || ||
|-
| 0x0251 || IPI RPELP || Interactive Products, Inc. || ||
|-
| 0x0260 || CS2 || Consistent Software || ||
|-
| 0x0270 || Sony ATRAC3 || Sony Corporation || msacm.at3=atrac3.acm || (SCX, same as MiniDisk LP2)
|-
| 0x0271 || Sony SCY || || ||
|-
| 0x0272 || Sony ATRAC3 || || ||
|-
| 0x0273 || Sony SPC || || ||
|-
| 0x0280 || TELUM || Telum Inc. || ||
|-
| 0x0281 || TELUMIA || Telum Inc. || ||
|-
| 0x0285 || Norcom Voice Systems ADPCM || Norcom Electronics Corporation || nvsadpcm.acm ||
|-
| 0x028e || MSN Messenger Audio Codec || Microsoft || msacm.siren=sirenacm.dll ||
|-
| 0x0300 || Fujitsu FM TOWNS SND || || ||
|-
| 0x0301 || Not specified || Fujitsu Corporation || ||
|-
| 0x0302 || Not specified || Fujitsu Corporation || ||
|-
| 0x0303 || Not specified || Fujitsu Corporation || ||
|-
| 0x0304 || Not specified || Fujitsu Corporation || ||
|-
| 0x0305 || Not specified || Fujitsu Corporation || ||
|-
| 0x0306 || Not specified || Fujitsu Corporation || ||
|-
| 0x0307 || Not specified || Fujitsu Corporation || ||
|-
| 0x0308 || Not specified || Fujitsu Corporation || ||
|-
| 0x0350 || Micronas Intermetall MI-SC4 || Micronas Semiconductors, Inc. || MSACM.MI-SC4=MI-SC4.acm ||
|-
| 0x0351 || CELP833 || Micronas Semiconductors, Inc. || ||
|-
| 0x03eb || DVMPEG Audio || Darim Vision Co., Ltd. || dvacmau.dll ||
|-
| 0x0400 || BTV Digital (Brooktree digital audio format) || || ||
|-
| 0x0400 || Citrix ADPCM || Citrix Systems, Inc. || ctxadpcm.acm ||
|-
| 0x0400 || Intel G.723.1 || Intel Corporation || g723.acm ||
|-
| 0x0401 || Intel Music Coder || || msacm.imc=imc32.acm ||
|-
| 0x0402 || Indeo® audio software || || msacm.iac2=iac25_32.ax ||
|-
| 0x0450 || QDesign Music || || ||
|-
| 0x0500 || On2 VP7 On2 Technologies AVC Audio || || ||
|-
| 0x0501 || On2 VP6 On2 Technologies || || ||
|-
| 0x0680 || AT&T Labs VME VMPCM || || ||
|-
| 0x0681 || AT&T Labs TPC || || ||
|-
| 0x0700 || YMPEG Alpha || || ympgacm.acm || (dummy for MPEG-2 compressor)
|-
| 0x08AE || ClearJump Lightwave Lossless || || || http://www.clearjump.com
|-
| 0x0917 || Splash Studios Audio Codec || Splash Studios || MSACM.SPLASH=SPLASH.ACM || (seems to be no different from [[Microsoft_IMA_ADPCM|Microsoft IMA ADPCM]])
|-
| 0x0AAC || HDX4 AAC || Jomigo GmbH || ||
|-
| 0x0FFF || Voxware v1.1.6 Bitstream-Mode Codecs || Voxware, Inc. || msacm.voxacm160=vct3216.acm ||
|-
| 0x1000 || Olivetti GSM || || ||
|-
| 0x1001 || Olivetti ADPCM || || ||
|-
| 0x1002 || Olivetti CELP || || ||
|-
| 0x1003 || Olivetti SBC || || ||
|-
| 0x1004 || Olivetti OPR || || ||
|-
| 0x1100 || Lernout & Hauspie codec || || MSACM.lh_codec=lh_codec.acm ||
|-
| 0x1101 || Lernout & Hauspie CELP codec || || lhacm.acm ||
|-
| 0x1102 || Lernout & Hauspie SBC codec || || lhacm.acm ||
|-
| 0x1103 || Lernout & Hauspie SBC codec || || lhacm.acm ||
|-
| 0x1104 || Lernout & Hauspie SBC codec || || lhacm.acm ||
|-
| 0x1400 || Norris Communication || || ||
|-
| 0x1401 || AT&T Labs ISIAudio || || ||
|-
| 0x1500 || Soundspace Musicompress || Soundspace Music Compression || ||
|-
| 0x1500 || Netspeak GSM || NetSpeak Corporation || nsgsm32.acm ||
|-
| 0x1501 || Netspeak Truespeech || NetSpeak Corporation || nstsp32.acm ||
|-
| 0x181C || VoxWare RT24 speech codec || Voxware Inc. || msacm.voxacm160=vct3216.acm NSRT2432.ACM VDK32116.ACM VDK32118.ACM ||
|-
| 0x181E || Lucent elemedia AX24000P Music codec || Netscape Communications || nspac32.acm ||
|-
| 0x1971 || Sonic Foundry LOSSLESS || || ||
|-
| 0x1979 || Innings Telecom Inc. ADPCM || || ||
|-
| 0x1C07 || Lucent SX8300P speech codec || Lucent Technologies || nsx83p32.acm ||
|-
| 0x1C0C || Lucent SX5363S G.723 compliant codec || Lucent Technologies || SX5363P.ACM Sx5363s.acm ||
|-
| 0x1F03 || CUseeMe DigiTalk (ex-Rockwell) || CUseeMe Networks, Inc. || WPDigitalk.acm ||
|-
| 0x1FC4 || NCT ALF2CD codec || NCT Company || alf2cd.acm || http://www.nctsoft.com
|-
| 0x2000 || AC-3ACM Codec || || msacm.ac3acm=ac3acm.acm ||
|-
| 0x2001 || Dolby DTS || Dolby Labs || ||
|-
| 0x2002 || RealAudio 1 / 2 14.4 || || ||
|-
| 0x2003 || RealAudio 1 / 2 28.8 || || ||
|-
| 0x2004 || RealAudio G2 / 8 Cook (low bitrate) || || ||
|-
| 0x2005 || RealAudio 3 / 4 / 5 Music (DNET) || || ||
|-
| 0x2006 || RealAudio 10 AAC (RAAC) || || ||
|-
| 0x2007 || RealAudio 10 AAC+ (RACP) || || ||
|-
| 0x2500 || Reserved range to * 0x2600 || Microsoft || ||
|-
| 0x3313 || makeAVIS || || ff_acm.acm || (ffvfw fake AVI sound from AviSynth scripts)
|-
| 0x4143 || Divio MPEG-4 AAC audio || || ||
|-
| 0x4180 || fortherecord MPEG AAC celp? || || ||
|-
| 0x4201 || Nokia adaptive multirate || Nokia Mobile Phones || ||
|-
| 0x4243 || Divio's G726 || Divio, Inc. || ||
|-
| 0x434C || LEAD Speech || || ||
|-
| 0x4f41 || GeoVision ADPCM || GeoVision Inc. || msacm.geoadpcm=GeoADPCM.acm ||
|-
| 0x564C || LEAD Vorbis || || ||
|-
| 0x5756 || WavPack Audio || xiph.org || || (open source)
|-
| 0x6665 || Litewave audio compressor || || || (lw.zip from http://www.clearjump.com)
|-
| 0x674f || Ogg Vorbis mode 1 || || msacm.vorbis=vorbis.acm ||
|-
| 0x6750 || Ogg Vorbis mode 2 || || msacm.vorbis=vorbis.acm ||
|-
| 0x6751 || Ogg Vorbis mode 3 || || msacm.vorbis=vorbis.acm ||
|-
| 0x676f || Ogg Vorbis mode 1+ || || msacm.vorbis=vorbis.acm ||
|-
| 0x6770 || Ogg Vorbis mode 2+ || || msacm.vorbis=vorbis.acm ||
|-
| 0x6771 || Ogg Vorbis mode 3+ || || msacm.vorbis=vorbis.acm ||
|-
| 0x7000 || 3COM NBX || 3Com Corporation || ||
|-
| 0x706D || FAAD AAC || || || (open source)
|-
| 0x77A1 || The True Audio || || ||
|-
| 0x7A21 || GSM-AMR (CBR, no SID) || || EmzAMRNBDec.dll || (doesnt actually decode properly)
|-
| 0x7A22 || GSM-AMR (VBR, including SID) || GSMA/3GPP || EmzAMRNBDec.dll || (doesnt actually decode properly)
|-
| 0x8180 || (unverified) For the Record || || || http://www.fortherecord.com
|-
| 0xA100 || COMVERSEINFOSYS G723 1 || Comverse Infosys Ltd. || ||
|-
| 0xA101 || COMVERSEINFOSYS AVQSBC || Comverse Infosys Ltd. || ||
|-
| 0xA102 || COMVERSEINFOSYS OLDSBC || Comverse Infosys Ltd. || ||
|-
| 0xA103 || Symbol Technology's G729A || Symbol Technologies Canada || ||
|-
| 0xA104 || VoiceAge AMR WB || VoiceAge Corporation || ||
|-
| 0xA105 || Ingenient Technologies Inc. G726 || || ITIG726.acm ||
|-
| 0xA106 || ISO/MPEG-4 advanced audio Coding AAC || || ||
|-
| 0xA107 || Encore Software Ltd's G726 || Encore Software Ltd. || ||
|-
| 0xA109 || Speex ACM Codec || xiph.org || || (Open Source)
|-
| 0xC0CC || GigaLink Audio Codec || || ||
|-
| 0xCD02 || Polycom PVX G.728 || Polycom, Inc || plcmg728.acm ||
|-
| 0xDFAC || DebugMode SonicFoundry Vegas FrameServer || || ||
|-
| 0xe708 || Unknown || || ||
|-
| 0xF1AC || Free Lossless Audio Codec FLAC || || CoreFLAC_ACM.acm ||
|-
| 0xFFFB || Citrix Audio || Citrix Systems, Inc. || ctrxaud.acm ||
|-
| 0xFFFC || VDOwave Audio || VDOnet Corp || MSACM.VDOACM=vdowave.acm ||
|-
| 0xFFFC || Philips LONGPLAY CODEC || Philips Speech Processing || MSACM.PSPTRUSP=PSPTRUSP.acm ||
|-
| 0xFFFD || Philips STANDARDPLAY CODEC || Philips Speech Processing || MSACM.PSPGRU=PSPGRU.acm ||
|-
| 0xFFFE || Extensible wave format || || ||
|-
| 0xFFFE || VDOnet VDOWave II || VDOnet Corp || VDOWAVE2.ACM ||
|-
| 0xFFFF || In Development / Unregistered || || ||
|-
|}


[[Category: Multimedia Terminology]]
[[Category: Multimedia Terminology]]

Latest revision as of 23:41, 6 July 2025

The TwoCC is the audio counterpart to the video FourCC. It is the audio format identifier used in the RIFF based multimedia formats by Microsoft (WAV and AVI). The TwoCC is 2 bytes long and stored in little endian format on disk. You can register your TwoCC with Microsoft but it seems that only some companies perform this process.

If you need help finding any codec mail me compn@ffmpeg.org

TwoCC Description Vendor Filename(s) Comment
0x0000 Microsoft Unknown Wave Format
0x0001 Microsoft PCM Format Microsoft
0x0002 Microsoft ADPCM Microsoft msacm.msadpcm=msadp32.acm
0x0003 IEEE754 FLOAT Microsoft
0x0004 Compaq Computer VSELP (codec for Windows CE 2.0 devices)
0x0005 IBM CVSD IBM Corporation
0x0006 Microsoft CCITT G.711 (A-Law and u-Law) Microsoft msacm.msg711=msg711.acm
0x0007 Microsoft CCITT G.711 (A-Law and u-Law) Microsoft msacm.msg711=msg711.acm
0x0008 Microsoft DTS
0x0009 Microsoft DRM
0x000A WMSpeech Microsoft
0x000B Windows Media RT Voice Microsoft
0x0010 OKI ADPCM
0x0011 IMA ADPCM Microsoft msacm.imaadpcm=imaadp32.acm
0x0012 Videologic MediaSpace ADPCM
0x0013 Sierra ADPCM Sierra Semiconductor Corp
0x0014 G723 ADPCM Antex Electronics Corporation
0x0015 DIGISTD DSP Solutions, Inc.
0x0016 DIGIFIX DSP Solutions, Inc.
0x0017 Dialogic OKI ADPCM Dictaphone Corporation okiadp32.acm
0x0018 MediaVision ADPCM
0x0019 CU CODEC Mobile Voice Hewlett-Packard Company mobileV.acm
0x001A Hewlett-Packard HP DYNAMIC VOICE
0x0020 Yamaha ADPCM
0x0021 Sonarc Speech Compression
0x0022 DSP Group TrueSpeech(TM) DSP GROUP, INC. msacm.trspch=tssoft32.acm
0x0023 ECHOSC1 Echo Speech Corporation
0x0024 Audiofile AF36 Virtual Music, Inc.
0x0024 Delrina DCC36 CODEC Delrina (Canada) Corporation DCC3632.ACM
0x0025 APTX Audio Processing Technology
0x0026 Audiofile AF10 Virtual Music, Inc. MSACM.AF10=AF10.ACM
0x0027 Prosody 1612 CTI Speech Card Aculab plc
0x0028 LRC Merging Technologies S.A.
0x0030 Dolby Labs AC2
0x0031 Microsoft GSM 6.10 Microsoft msacm.msgsm610=msgsm32.acm
0x0032 MSNAudio Microsoft MSACM.MSNAUDIO=msnaudio.acm
0x0033 Antex ADPCME Antex Electronics Corporation
0x0034 Control Res. VQLPC Control Resources Limited
0x0035 DigiReal DSP Solutions, Inc.
0x0036 DigiADPCM DSP Solutions, Inc.
0x0037 Control Res. CR10 Control Resources Limited
0x0038 NMS VBXADPCM Natural MicroSystems
0x0039 CS IMAADPCM Roland RDAC Crystal Semiconductor IMA ADPCM
0x003A ECHOSC3 Echo Speech Corporation
0x003B Rockwell ADPCM Rockwell International DCCRKL32.ACM
0x003C Rockwell DIGITALK Rockwell International
0x003D XEBEC Xebec Multimedia Solutions Limited
0x0040 G721 ADPCM Antex Electronics Corporation
0x0041 G728 CELP Antex Electronics Corporation
0x0042 Microsoft G.723.1 Microsoft msacm.msg723=msg723.acm
0x0043 IBM AVC ADPCM
0x0044 MSG729 Microsoft
0x0045 ITU-T G.726 ADPCM ITIG726.acm Scg726.acm
0x0050 MPEG (MP1/MP2) ISO/IEC
0x0050 QDesign MPEG QDesign Corporation qmpeg.acm
0x0052 InSoft RT24 (ACM codec is an alternative codec)
0x0053 PAC InSoft, Inc.
0x0055 MPEG Layer-3 Audio Codec msacm.l3ACM=l3codeca.acm
0x0057 AMR-NB
0x0058 AMR-WB
0x0059 Lucent G.723
0x0060 Delrina Cirrus ALAW Cirrus Logic DCCCRS32.ACM
0x0061 ESS Technology ESPCM
0x0061 Duck DK4 ADPCM The Duck Corporation dk4bit32.acm
0x0062 Voxware File-Mode Codecs Voxware, Inc. msacm.voxacm160=vct3216.acm VDK32116.ACM VDK32118.ACM
0x0062 Duck DK3 ADPCM The Duck Corporation dk3b32.acm
0x0063 Canopus ATRAC Canopus, co., Ltd.
0x0064 G726 ADPCM APICOM
0x0065 G722 ADPCM APICOM
0x0066 DSAT Microsoft
0x0067 DSAT DISPLAY Microsoft
0x0069 Voxware v1.1.8 Bitstream-Mode Codecs Voxware, Inc. msacm.voxacm160=vct3216.acm VDK32118.ACM
0x0069 Xbox ADPCM Microsoft XBADPCM.ACM
0x0070 Voxware AC8 (Lernout & Hauspie CELP 4.8 kbps) lhacm.acm
0x0071 Voxware AC10 (Lernout & Hauspie CBS 8kbps) lhacm.acm
0x0072 Voxware AC16 (Lernout & Hauspie CBS 12kbps) lhacm.acm
0x0073 Voxware AC20 (Lernout & Hauspie CBS 16kbps) lhacm.acm
0x0074 Voxware MetaVoice Voxware, Inc. msacm.voxacm160=vct3216.acm VCT32150.acm
0x0075 Voxware RT29 Metasound Voxware, Inc. msacm.voxacm160=vct3216.acm
0x0076 Voxware RT29HW
0x0077 Voxware VR12
0x0078 Voxware VR18
0x0079 Voxware TQ40
0x007A Voxware SC3
0x007B Voxware SC3
0x0080 Softsound Softsound, Ltd.
0x0081 Voxware TQ60
0x0082 Microsoft MSRT24 Microsoft (ACM codec is an alternative codec)
0x0083 G729A AT&T Labs, Inc.
0x0084 MVI MVI2 Motion Pixels
0x0085 DataFusion Systems G.726
0x0086 DataFusion Systems GSM610
0x0088 ISIAUDIO Iterated Systems, Inc.
0x0089 ONLIVE OnLive! Technologies, Inc.
0x008A MULTITUDE FT SX20 Multitude, Inc.
0x008B G.721 ADPCM Infocom ITS A/S
0x008C CONVEDIA G729 Convedia Corporation
0x008D Not specified congruency, Inc.
0x0091 SBC24 Siemens Business Communications Sys.
0x0092 Dolby AC3 SPDIF Sonic Foundry
0x0093 MediaSonic G.723
0x0093 Symantec ZyXEL ADPCM Symantec/Delrina (Canada) Corporation DCCZYL32.ACM
0x0094 Prosody 8KBPS Aculab plc
0x0097 Zyxel ADPCM ZyXEL Communications, Inc.
0x0098 Philips LPCBB Philips Speech Processing SMLPCBB.ACM
0x0099 PACKED Studer Professional Audio AG
0x00A0 Malden PhonyTalk Malden Electronics Ltd.
0x00A1 Racal Recorder GSM Racal Recorders
0x00A2 Racal Recorder G720.a Racal Recorders
0x00A3 Racal G723.1 Racal Recorders
0x00A4 Racal Tetra ACELP Racal Recorders
0x00B0 NEC AAC NEC Corporation
0x00E1 Microsoft ADPCM Microsoft
0x00f4 WRPR codec
0x00FF AAC
0x0100 Rhetorex ADPCM Rhetorex Inc. rhetorex.acm
0x0101 IBM mu-law / BeCubed Software IRAT
0x0102 ALAW IBM a-law format
0x0103 ADPCM IBM AVC Adaptive Differential Pulse Code Modulation
0x0111 Vivo G.723 Vivo Software msacm.vivog723=vivog723.acm
0x0112 Vivo Siren Vivo Software msacm.vivog723=vivog723.acm
0x0120 PHILIPS CELP Philips Speech Processing smcelp32.acm
0x0121 PHILIPS GRUNDIG Philips Speech Processing
0x0123 DEC G723 Digital Equipment Corporation Digital G.723
0x0125 Sanyo LD ADPCM SANYO Electric Co., Ltd. msacm.ldadpcm=LDADP32.acm
0x0130 Sipro Lab Telecom ACELP.net Sipro Lab Telecom Inc. msacm.sl_anet=sl_anet.acm
0x0131 Sipro Lab Telecom ACELP.4800 Sipro Lab Telecom Inc.
0x0132 Sipro Lab Telecom ACELP.8V3 Sipro Lab Telecom Inc.
0x0133 Sipro Lab Telecom ACELP.G.729 Sipro Lab Telecom Inc.
0x0134 Sipro Lab Telecom ACELP.G.729A Sipro Lab Telecom Inc.
0x0135 Sipro Lab Telecom ACELP.KELVIN Sipro Lab Telecom Inc.
0x0136 VOICEAGE AMR VoiceAge Corporation
0x0140 G726ADPCM Dictaphone Corporation
0x0141 CELP68 Dictaphone Corporation
0x0142 CELP54 Dictaphone Corporation
0x0150 Qualcomm PureVoice
0x0151 Qualcomm HalfRate
0x0155 TUB GSM 06.10 Ring Zero Systems, Inc. MSACM.RZSGSM=RZSGSM32.ACM
0x0156 TUB GSM 06.10 (USR) Ring Zero Systems, Inc. MSACM.RZSGSM=RZSGSM32.ACM
0x0160 Windows Media Audio Microsoft msacm.msaudio1=msaud32.acm
0x0161 Windows Media Audio V2 V7 V8 V9 / DivX audio (WMA) / Alex AC3 Audio Microsoft msacm.msaudio1=msaud32.acm
0x0162 Windows Media Audio 9 Professional Microsoft, Inc.
0x0163 Windows Media Audio 9 Lossless Microsoft, Inc.
0x0164 WMA Pro over S/PDIF
0x0170 UNISYS NAP ADPCM Unisys Corporation
0x0171 UNISYS NAP ULAW Unisys Corporation
0x0172 UNISYS NAP ALAW Unisys Corporation
0x0173 UNISYS NAP 16K Unisys Corporation
0x0174 MM SYCOM ACM SYC008 SyCom Technologies
0x0175 MM SYCOM ACM SYC701 G726L SyCom Technologies
0x0176 MM SYCOM ACM SYC701 CELP54 SyCom Technologies
0x0177 MM SYCOM ACM SYC701 CELP68 SyCom Technologies
0x0178 Knowledge Adventure ADPCM
0x0180 MPEG2AAC Fraunhofer IIS
0x0190 DTS DS Digital Theater Systems, Inc.
0x0200 Creative Labs ADPCM Creative Technology Ltd ctadp32.acm MSACM.WFM0200=WFM0200.ACM
0x0202 Creative Labs FastSpeech8 Creative Technology Ltd CTFS32.ACM MSACM.WFM0202=WFM0202.ACM CTFS32.ACM has no implementation
0x0203 Creative Labs FastSpeech10 Creative Technology Ltd CTFS32.ACM MSACM.WFM0203=WFM0203.ACM CTFS32.ACM has no implementation
0x0210 UHER ADPCM UHER informatic GmbH nvsadpcm.acm
0x0215 Ulead DV msacm.dvACM=dvacm.acm
0x0216 Ulead DV Ulead Systems, Inc. msacm.dvACM=Dvacm.acm
0x0217 Ulead MP3 msacm.ulmp3acm=ulmp3acm.acm Warning: Codec is disabled
0x0220 Quarterdeck Quarterdeck Corporation
0x0230 I-Link VC I-link Worldwide
0x0240 RAW SPORT Aureal Semiconductor
0x0241 ESST AC3 ESS Technology
0x0250 IPI HSX Interactive Products, Inc.
0x0251 IPI RPELP Interactive Products, Inc.
0x0260 CS2 Consistent Software
0x0270 Sony ATRAC3 Sony Corporation msacm.at3=atrac3.acm (SCX, same as MiniDisk LP2)
0x0271 Sony SCY
0x0272 Sony ATRAC3
0x0273 Sony SPC
0x0280 TELUM Telum Inc.
0x0281 TELUMIA Telum Inc.
0x0285 Norcom Voice Systems ADPCM Norcom Electronics Corporation nvsadpcm.acm
0x028e MSN Messenger Audio Codec Microsoft msacm.siren=sirenacm.dll
0x0300 Fujitsu FM TOWNS SND
0x0301 Not specified Fujitsu Corporation
0x0302 Not specified Fujitsu Corporation
0x0303 Not specified Fujitsu Corporation
0x0304 Not specified Fujitsu Corporation
0x0305 Not specified Fujitsu Corporation
0x0306 Not specified Fujitsu Corporation
0x0307 Not specified Fujitsu Corporation
0x0308 Not specified Fujitsu Corporation
0x0350 Micronas Intermetall MI-SC4 Micronas Semiconductors, Inc. MSACM.MI-SC4=MI-SC4.acm
0x0351 CELP833 Micronas Semiconductors, Inc.
0x03eb DVMPEG Audio Darim Vision Co., Ltd. dvacmau.dll
0x0400 BTV Digital (Brooktree digital audio format)
0x0400 Citrix ADPCM Citrix Systems, Inc. ctxadpcm.acm
0x0400 Intel G.723.1 Intel Corporation g723.acm
0x0401 Intel Music Coder msacm.imc=imc32.acm
0x0402 Indeo® audio software msacm.iac2=iac25_32.ax
0x0450 QDesign Music
0x0500 On2 VP7 On2 Technologies AVC Audio
0x0501 On2 VP6 On2 Technologies
0x0680 AT&T Labs VME VMPCM
0x0681 AT&T Labs TPC
0x0700 YMPEG Alpha ympgacm.acm (dummy for MPEG-2 compressor)
0x08AE ClearJump Lightwave Lossless http://www.clearjump.com
0x0917 Splash Studios Audio Codec Splash Studios MSACM.SPLASH=SPLASH.ACM (seems to be no different from Microsoft IMA ADPCM)
0x0AAC HDX4 AAC Jomigo GmbH
0x0FFF Voxware v1.1.6 Bitstream-Mode Codecs Voxware, Inc. msacm.voxacm160=vct3216.acm
0x1000 Olivetti GSM
0x1001 Olivetti ADPCM
0x1002 Olivetti CELP
0x1003 Olivetti SBC
0x1004 Olivetti OPR
0x1100 Lernout & Hauspie codec MSACM.lh_codec=lh_codec.acm
0x1101 Lernout & Hauspie CELP codec lhacm.acm
0x1102 Lernout & Hauspie SBC codec lhacm.acm
0x1103 Lernout & Hauspie SBC codec lhacm.acm
0x1104 Lernout & Hauspie SBC codec lhacm.acm
0x1400 Norris Communication
0x1401 AT&T Labs ISIAudio
0x1500 Soundspace Musicompress Soundspace Music Compression
0x1500 Netspeak GSM NetSpeak Corporation nsgsm32.acm
0x1501 Netspeak Truespeech NetSpeak Corporation nstsp32.acm
0x181C VoxWare RT24 speech codec Voxware Inc. msacm.voxacm160=vct3216.acm NSRT2432.ACM VDK32116.ACM VDK32118.ACM
0x181E Lucent elemedia AX24000P Music codec Netscape Communications nspac32.acm
0x1971 Sonic Foundry LOSSLESS
0x1979 Innings Telecom Inc. ADPCM
0x1C07 Lucent SX8300P speech codec Lucent Technologies nsx83p32.acm
0x1C0C Lucent SX5363S G.723 compliant codec Lucent Technologies SX5363P.ACM Sx5363s.acm
0x1F03 CUseeMe DigiTalk (ex-Rockwell) CUseeMe Networks, Inc. WPDigitalk.acm
0x1FC4 NCT ALF2CD codec NCT Company alf2cd.acm http://www.nctsoft.com
0x2000 AC-3ACM Codec msacm.ac3acm=ac3acm.acm
0x2001 Dolby DTS Dolby Labs
0x2002 RealAudio 1 / 2 14.4
0x2003 RealAudio 1 / 2 28.8
0x2004 RealAudio G2 / 8 Cook (low bitrate)
0x2005 RealAudio 3 / 4 / 5 Music (DNET)
0x2006 RealAudio 10 AAC (RAAC)
0x2007 RealAudio 10 AAC+ (RACP)
0x2500 Reserved range to * 0x2600 Microsoft
0x3313 makeAVIS ff_acm.acm (ffvfw fake AVI sound from AviSynth scripts)
0x4143 Divio MPEG-4 AAC audio
0x4180 fortherecord MPEG AAC celp?
0x4201 Nokia adaptive multirate Nokia Mobile Phones
0x4243 Divio's G726 Divio, Inc.
0x434C LEAD Speech
0x4f41 GeoVision ADPCM GeoVision Inc. msacm.geoadpcm=GeoADPCM.acm
0x564C LEAD Vorbis
0x5756 WavPack Audio xiph.org (open source)
0x6665 Litewave audio compressor (lw.zip from http://www.clearjump.com)
0x674f Ogg Vorbis mode 1 msacm.vorbis=vorbis.acm
0x6750 Ogg Vorbis mode 2 msacm.vorbis=vorbis.acm
0x6751 Ogg Vorbis mode 3 msacm.vorbis=vorbis.acm
0x676f Ogg Vorbis mode 1+ msacm.vorbis=vorbis.acm
0x6770 Ogg Vorbis mode 2+ msacm.vorbis=vorbis.acm
0x6771 Ogg Vorbis mode 3+ msacm.vorbis=vorbis.acm
0x7000 3COM NBX 3Com Corporation
0x706D FAAD AAC (open source)
0x77A1 The True Audio
0x7A21 GSM-AMR (CBR, no SID) EmzAMRNBDec.dll (doesnt actually decode properly)
0x7A22 GSM-AMR (VBR, including SID) GSMA/3GPP EmzAMRNBDec.dll (doesnt actually decode properly)
0x8180 (unverified) For the Record http://www.fortherecord.com
0xA100 COMVERSEINFOSYS G723 1 Comverse Infosys Ltd.
0xA101 COMVERSEINFOSYS AVQSBC Comverse Infosys Ltd.
0xA102 COMVERSEINFOSYS OLDSBC Comverse Infosys Ltd.
0xA103 Symbol Technology's G729A Symbol Technologies Canada
0xA104 VoiceAge AMR WB VoiceAge Corporation
0xA105 Ingenient Technologies Inc. G726 ITIG726.acm
0xA106 ISO/MPEG-4 advanced audio Coding AAC
0xA107 Encore Software Ltd's G726 Encore Software Ltd.
0xA109 Speex ACM Codec xiph.org (Open Source)
0xC0CC GigaLink Audio Codec
0xCD02 Polycom PVX G.728 Polycom, Inc plcmg728.acm
0xDFAC DebugMode SonicFoundry Vegas FrameServer
0xe708 Unknown
0xF1AC Free Lossless Audio Codec FLAC CoreFLAC_ACM.acm
0xFFFB Citrix Audio Citrix Systems, Inc. ctrxaud.acm
0xFFFC VDOwave Audio VDOnet Corp MSACM.VDOACM=vdowave.acm
0xFFFC Philips LONGPLAY CODEC Philips Speech Processing MSACM.PSPTRUSP=PSPTRUSP.acm
0xFFFD Philips STANDARDPLAY CODEC Philips Speech Processing MSACM.PSPGRU=PSPGRU.acm
0xFFFE Extensible wave format
0xFFFE VDOnet VDOWave II VDOnet Corp VDOWAVE2.ACM
0xFFFF In Development / Unregistered
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