Decimal value,Hexadecimal value,Description 0,0x0000,Unknown 1,0x0001,PCM (Pulse-Code Modulation) 2,0x0002,ADPCM (Adaptive Differential Pulse-Code Modulation) 3,0x0003,IEEE float 4,0x0004,Compaq VSELP (Vector Sum Excited Linear Prediction) 5,0x0005,IBM CVSDM (Continuously Variable Slope Delta Modulation) 6,0x0006,ITU G.711 a-law 7,0x0007,ITU G.711 µ-law 8,0x0008,Microsoft DTS 9,0x0009,DRM 10,0x000A,WMA 9 Speech 11,0x000B,Microsoft Windows Media RT Voice 16,0x0010,OKI-ADPCM 17,0x0011,Intel IMA/DVI-ADPCM 18,0x0012,Videologic Mediaspace ADPCM 19,0x0013,Sierra ADPCM 20,0x0014,Antex G.723 ADPCM 21,0x0015,DSP Solutions DIGISTD 22,0x0016,DSP Solutions DIGIFIX 23,0x0017,Dialogic OKI ADPCM 24,0x0018,Media Vision ADPCM 25,0x0019,HP CU 26,0x001A,HP Dynamic Voice 32,0x0020,Yamaha ADPCM 33,0x0021,SONARC Speech Compression 34,0x0022,DSP Group True Speech 35,0x0023,Echo Speech Corp. 36,0x0024,Virtual Music Audiofile AF36 37,0x0025,Audio Processing Tech. 38,0x0026,Virtual Music Audiofile AF10 39,0x0027,Aculab Prosody 1612 40,0x0028,Merging Tech. LRC 48,0x0030,Dolby AC2 49,0x0031,Microsoft GSM610 50,0x0032,MSN Audio 51,0x0033,Antex ADPCM 52,0x0034,Control Resources VQLPC 53,0x0035,DSP Solutions DIGIREAL 54,0x0036,DSP Solutions DIGIADPCM 55,0x0037,Control Resources CR10 56,0x0038,Natural MicroSystems VBX ADPCM 57,0x0039,Crystal Semiconductors IMA ADPCM 58,0x003A,Echo Speech ECHOSC3 59,0x003B,Rockwell ADPCM 60,0x003C,Rockwell DIGITALK 61,0x003D,Xebec Multimedia 64,0x0040,Antex G.721 ADPCM 65,0x0041,Antex G.728 CELP 66,0x0042,Microsoft MSG723 67,0x0043,IBM AVC ADPCM 69,0x0045,ITU-T G.726 80,0x0050,Microsoft MPEG 81,0x0051,RT23 or PAC 82,0x0052,InSoft RT24 83,0x0053,InSoft PAC 85,0x0055,MP3 89,0x0059,Cirrus 96,0x0060,Cirrus Logic 97,0x0061,ESS Tech. PCM 98,0x0062,Voxware Inc. 99,0x0063,Canopus ATRAC 100,0x0064,APICOM G.726 ADPCM 101,0x0065,APICOM G.722 ADPCM 102,0x0066,Microsoft DSAT 103,0x0067,Microsoft DSAT-DISPLAY 105,0x0069,Voxware Byte Aligned 112,0x0070,Voxware ACB 113,0x0071,Voxware AC10 114,0x0072,Voxware AC16 115,0x0073,Voxware AC20 116,0x0074,Voxware MetaVoice 117,0x0075,Voxware MetaSound 118,0x0076,Voxware RT29HW 119,0x0077,Voxware VR12 120,0x0078,Voxware VR18 121,0x0079,Voxware TQ40 122,0x007A,Voxware SC3 123,0x007B,Voxware SC3 128,0x0080,Soundsoft 129,0x0081,Voxware TQ60 130,0x0082,Microsoft MSRT24 131,0x0083,AT&T G.729A 132,0x0084,Motion Pixels MVI-MV12 133,0x0085,DataFusion G.726 134,0x0086,DataFusion GSM610 136,0x0088,Iterated Systems Audio 137,0x0089,Onlive 138,0x008A,"Multitude, Inc. FT SX20" 139,0x008B,Infocom IT’S A/S G.721 ADPCM 140,0x008C,Convedia G729 141,0x008D,"Congruency, Inc. (not specified)" 145,0x0091,Siemens SBC24 146,0x0092,Sonic Foundry Dolby AC3 APDIF 147,0x0093,MediaSonic G.723 148,0x0094,Aculab Prosody 8kbps 151,0x0097,ZyXEL ADPCM 152,0x0098,Philips LPCBB 153,0x0099,Studer Professional Audio Packed 160,0x00A0,Maiden PhonyTalk 161,0x00A1,Racal Recorder GSM 162,0x00A2,Racal Recorder G720.a 163,0x00A3,Racal G723.1 164,0x00A4,Racal Tetra ACELP 176,0x00B0,NEC AAC NEC Corporation 255,0x00FF,AAC 256,0x0100,Rhetorex ADPCM 257,0x0101,IBM u-Law 258,0x0102,IBM a-Law 259,0x0103,IBM ADPCM 273,0x0111,Vivo G.723 274,0x0112,Vivo Siren 288,0x0120,Philips Speech Processing CELP 289,0x0121,Philips Speech Processing GRUNDIG 291,0x0123,Digital G.723 293,0x0125,Sanyo LD ADPCM 304,0x0130,Sipro Lab ACEPLNET 305,0x0131,Sipro Lab ACELP4800 306,0x0132,Sipro Lab ACELP8V3 307,0x0133,Sipro Lab G.729 308,0x0134,Sipro Lab G.729A 309,0x0135,Sipro Lab Kelvin 310,0x0136,VoiceAge AMR 320,0x0140,Dictaphone G.726 ADPCM 336,0x0150,Qualcomm PureVoice 337,0x0151,Qualcomm HalfRate 341,0x0155,Ring Zero Systems TUBGSM 352,0x0160,Microsoft Audio1 353,0x0161,Windows Media Audio V2 V7 V8 V9 / DivX audio (WMA) / Alex AC3 Audio 354,0x0162,Windows Media Audio Professional V9 355,0x0163,Windows Media Audio Lossless V9 356,0x0164,WMA Pro over S/PDIF 357,0x0165,XMA (Xbox Media Audio) 358,0x0166,XMA2 (Xbox Media Audio 2) 368,0x0170,UNISYS NAP ADPCM 369,0x0171,UNISYS NAP ULAW 370,0x0172,UNISYS NAP ALAW 371,0x0173,UNISYS NAP 16K 372,0x0174,MM SYCOM ACM SYC008 SyCom Technologies 373,0x0175,MM SYCOM ACM SYC701 G726L SyCom Technologies 374,0x0176,MM SYCOM ACM SYC701 CELP54 SyCom Technologies 375,0x0177,MM SYCOM ACM SYC701 CELP68 SyCom Technologies 376,0x0178,Knowledge Adventure ADPCM 384,0x0180,Fraunhofer IIS MPEG2AAC 400,0x0190,Digital Theater Systems DTS DS 512,0x0200,Creative Labs ADPCM 514,0x0202,Creative Labs FASTSPEECH8 515,0x0203,Creative Labs FASTSPEECH10 528,0x0210,UHER ADPCM 533,0x0215,Ulead DV ACM 534,0x0216,Ulead DV ACM 544,0x0220,Quarterdeck Corp. 560,0x0230,I-Link VC 576,0x0240,Aureal Semiconductor Raw Sport 577,0x0241,ESST AC3 592,0x0250,Interactive Products HSX 593,0x0251,Interactive Products RPELP 608,0x0260,Consistent CS2 624,0x0270,Sony SCX 625,0x0271,Sony SCY 626,0x0272,Sony ATRAC3 627,0x0273,Sony SPC 640,0x0280,TELUM Telum Inc. 641,0x0281,TELUMIA Telum Inc. 645,0x0285,Norcom Voice Systems ADPCM 768,0x0300,Fujitsu FM TOWNS SND 769,0x0301,Fujitsu (not specified) 770,0x0302,Fujitsu (not specified) 771,0x0303,Fujitsu (not specified) 772,0x0304,Fujitsu (not specified) 773,0x0305,Fujitsu (not specified) 774,0x0306,Fujitsu (not specified) 775,0x0307,Fujitsu (not specified) 776,0x0308,Fujitsu (not specified) 848,0x0350,"Micronas Semiconductors, Inc. Development" 849,0x0351,"Micronas Semiconductors, Inc. CELP833" 1024,0x0400,Brooktree Digital 1025,0x0401,Intel Music Coder (IMC) 1026,0x0402,Ligos Indeo Audio 1104,0x0450,QDesign Music 1280,0x0500,On2 VP7 On2 Technologies 1281,0x0501,On2 VP6 On2 Technologies 1664,0x0680,AT&T VME VMPCM 1665,0x0681,AT&T TCP 1792,0x0700,YMPEG Alpha (dummy for MPEG-2 compressor) 2222,0x08AE,ClearJump LiteWave (lossless) 4096,0x1000,Olivetti GSM 4097,0x1001,Olivetti ADPCM 4098,0x1002,Olivetti CELP 4099,0x1003,Olivetti SBC 4100,0x1004,Olivetti OPR 4352,0x1100,Lernout & Hauspie 4353,0x1101,Lernout & Hauspie CELP codec 4354,0x1102,Lernout & Hauspie SBC codec 4355,0x1103,Lernout & Hauspie SBC codec 4356,0x1104,Lernout & Hauspie SBC codec 5120,0x1400,Norris Comm. Inc. 5121,0x1401,ISIAudio 5376,0x1500,AT&T Soundspace Music Compression 6172,0x181C,VoxWare RT24 speech codec 6174,0x181E,Lucent elemedia AX24000P Music codec 6513,0x1971,Sonic Foundry LOSSLESS 6521,0x1979,Innings Telecom Inc. ADPCM 7175,0x1C07,Lucent SX8300P speech codec 7180,0x1C0C,Lucent SX5363S G.723 compliant codec 7939,0x1F03,CUseeMe DigiTalk (ex-Rocwell) 8132,0x1FC4,NCT Soft ALF2CD ACM 8192,0x2000,FAST Multimedia DVM 8193,0x2001,Dolby DTS (Digital Theater System) 8194,0x2002,RealAudio 1 / 2 14.4 8195,0x2003,RealAudio 1 / 2 28.8 8196,0x2004,RealAudio G2 / 8 Cook (low bitrate) 8197,0x2005,RealAudio 3 / 4 / 5 Music (DNET) 8198,0x2006,RealAudio 10 AAC (RAAC) 8199,0x2007,RealAudio 10 AAC+ (RACP) 9472,0x2500,Reserved range to 0x2600 Microsoft 13075,0x3313,makeAVIS (ffvfw fake AVI sound from AviSynth scripts) 16707,0x4143,Divio MPEG-4 AAC audio 16897,0x4201,Nokia adaptive multirate 16963,0x4243,"Divio G726 Divio, Inc." 17228,0x434C,LEAD Speech 22092,0x564C,LEAD Vorbis 22358,0x5756,WavPack Audio 26447,0x674F,Ogg Vorbis (mode 1) 26448,0x6750,Ogg Vorbis (mode 2) 26449,0x6751,Ogg Vorbis (mode 3) 26479,0x676F,Ogg Vorbis (mode 1+) 26480,0x6770,Ogg Vorbis (mode 2+) 26481,0x6771,Ogg Vorbis (mode 3+) 28672,0x7000,3COM NBX 3Com Corporation 28781,0x706D,FAAD AAC 31265,0x7A21,"GSM-AMR (CBR, no SID)" 31266,0x7A22,"GSM-AMR (VBR, including SID)" 41216,0xA100,Comverse Infosys Ltd. G723 1 41217,0xA101,Comverse Infosys Ltd. AVQSBC 41218,0xA102,Comverse Infosys Ltd. OLDSBC 41219,0xA103,Symbol Technologies G729A 41220,0xA104,VoiceAge AMR WB VoiceAge Corporation 41221,0xA105,Ingenient Technologies Inc. G726 41222,0xA106,ISO/MPEG-4 advanced audio Coding 41223,0xA107,Encore Software Ltd G726 41225,0xA109,Speex ACM Codec xiph.org 57260,0xDFAC,DebugMode SonicFoundry Vegas FrameServer ACM Codec 59144,0xE708,Unknown 61868,0xF1AC,Free Lossless Audio Codec FLAC 65534,0xFFFE,Extensible 65535,0xFFFF,Development