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Comparison of audio coding formats
...The following tables compare general and technical information for a variety of audio coding formats.
For listening tests comparing the perceived audio quality of audio formats and codecs, see the article Codec listening test.
General information
| Audio compression format | Creator | First public release date | Latest stable version | Cost | Proprietary implementations (codecs) | Open-source implementations (codecs) | Uses (other than consumer audio) |
Music reproduction (consumer audio) | Telephony app | Lossless audio compression | Patented | DRM | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Encoder | Player | ||||||||||||
| AAC | ISO/IEC MPEG Audio Committee | 1997 | ISO/IEC 14496-3 | Non-free[1] | Nero Digital Audio, Apple CoreAudio (via QuickTime, iTunes or afconvert[2]) | FAAC (encoding only), FAAD2 (decoding only), FFmpeg, Audiocogs[3] (decoding only), Fraunhofer FDK AAC | Digital TV service, Digital Radio, Internet streaming | Yes | AAC-LD/AAC-ELD | MPEG-4 SLS | Yes | FairPlay (.m4p only, discontinued) | |
| AC-3 | Dolby Laboratories | 1992 | ATSC A52:2018 | Free | DVD players, digital television, Camcorder | FFmpeg, liba52 (decoding only), Aften (encoding only), libavc (2.0 channels max) | Theatrical movie presentation, Digital TV service & home-video (personal recorders, DVD, etc.) | No | No | No | No | ? | |
| AC-4 | Dolby Laboratories | 2014 | ATSC A342:2022-03 | Non-free | Digital television, Harmonic Inc., DS Broadcast, Ateme, Synamedia, Dolby Media Encoder & Dolby Encoding Engine | ExoPlayer (decoding only for supported mobile devices) | Digital TV service | No | No | No | Yes | ? | |
| ALAC | Apple Inc. | 2004-04-28 | QuickTime 7.6 | Free | QuickTime, iTunes, RealPlayer | MacOSforge, FFmpeg, Audiocogs[4] (decoding only) | Music archival | Yes | No | Yes | Free | Possible, but never implemented | |
| ALS | ISO/IEC MPEG Audio Committee | 2005 | ISO/IEC 14496-3 | Free | MPEG-4 ALS | FFmpeg (decoding only) | - | Yes | No | Yes | Yes | ? | |
| AMBE | Digital Voice Systems | ? | ? | Non-free | ? | mbelib | Low bandwidth HF/VHF digital radio, VoIP trunking | No | No | No | Yes | ? | |
| AMR | 3GPP | 1999-06-22 | ETSI TS 126 071 V9.0.0 (2009) | Non-free[5][6] | QuickTime, RealPlayer | FFmpeg (decoding only), FFmpeg with OpenCORE libraries,[7] Android[8] | voice recording | No | Yes | No | Yes | No | |
| AMR-WB (G.722.2) |
3GPP | 2001-04-10 | ETSI TS 126 190 V8.0.0 (2009-01) | Non-free | QuickTime, RealPlayer | FFmpeg (decoding only),[7] FFmpeg with VisualOn libraries, Android (decoding only),[8] opencore-amr for both encoding and decoding | voice recording | No | Yes | No | Yes | No | |
| AMR-WB+ | 3GPP | 2004-06-14 | ETSI TS 126 290 V8.0.0 (2009-01) | Non-free[9][10] | ? | ? | voice recording | Yes | Yes | No | Yes | No | |
| aptX | Qualcomm | 1989 | 2007 | Non-free | Broadcast audio codecs: 2wcom systems, Systembase, APT, AVT, Harris Corporation, MAYAH, Prodys, Qbit; wireless headphones: iSkin, JayBird Gear, DTS discs for movies | FFmpeg | Low latency Studio/transmitter link, Bluetooth A2DP stereo, digital wireless microphone | Yes | No | No | Yes | No | |
| ATRAC | Sony Corp. | 1991 | ATRAC3plus | Non-free | MiniDisc, Walkman, VAIO, Clie, PlayStation 3, PlayStation 4, PlayStation 5, PlayStation Portable, PlayStation Vita, SDDS, SonicStage, SoundForge, RealPlayer, ConnectPlayer | FFmpeg (decoding only, ATRAC Advanced Lossless is only partially supported) | voice recording, theatrical movie presentation | Yes | No | Yes | Yes | Yes | |
| BroadVoice (BV16, BV32) | Broadcom | 2009-08-19 | 1.2 | Free | ? | ? | Speech, VoIP, Low latency, voice recording | No | Yes | No | Free | No | |
| CELT | Xiph.Org Foundation, Jean-Marc Valin | 2007-12-08 | 0.11.1 (merged into Opus) | Free | ? | libcelt, FFmpeg with libcelt library (decoding only) | Speech, VoIP, Low latency, Studio/transmitter link, wireless audio | Yes | Yes | No | No | No | |
| Codec2 | David Rowe | 2010-08-25 | 1.2.0
(2023-07-14) |
Free | ? | c2enc, c2dec | Low bandwidth HF/VHF digital radio, VoIP trunking | No | Yes | No | No | No | |
| Encodec | 2022-10-25 | v0.1.1
(2022-10-26) |
Free | ? | Encodec | Speech, VoIP, voice recording | Yes | Yes | No | ? | No | ||
| Enhanced AC-3 (E-AC-3) | Dolby Laboratories | 2004 | ATSC A52:2018 | Non-free | Digital television | FFmpeg | Theatrical movie presentation, digital TV service & home-video (personal recorders, DVD, etc.) | No | No | No | Yes | Yes | |
| EVS | Fraunhofer, JVC Kenwood, NTT, NTT Docomo, Panasonic, Ericsson | 2014 | ? | Non-free | ? | ? | ? | ? | Yes | Yes | No | Yes | No |
| FLAC | Xiph.Org Foundation, Josh Coalson | 2001-07-20 | 1.4.3
(2023-06-23) |
Free | FLAC,[11] Flake[12] (encoding only), FFmpeg, FLACCL[13] (encoding only), Audiocogs[14] (decoding only) | Music archival[15] | Yes | No | Yes | No | No | ||
| G.711 | ITU-T | 1972 (ITU-T standard from 1988) | G.711 Appendix II (02/00) | Free | Various proprietary VoIP software | FFmpeg, Ekiga, Asterisk (PBX) and almost any VoIP software | voice recording | No | Yes | No | No | No | |
| G.722 | ITU-T | 1988-11 | Free | Various proprietary VoIP software | Asterisk (PBX), QuteCom, FFmpeg | voice recording | No | Yes | No | No | No | ||
| G.722.1 | ITU-T | 1999-09 | G.722.1 (05/05) | Free[16][17] | Various proprietary VoIP software | FreeSWITCH,[18] PJSIP, etc | voice recording | No | Yes | No | Yes | No | |
| G.722.2 (AMR-WB) |
ITU-T (adopted directly from 3GPP) | 2002-01 | G.722.2 (07/03) | Non-free | QuickTime, RealPlayer | FFmpeg (decoding only),[7] FFmpeg with VisualOn libraries, Android (decoding only)[8] | voice recording, audio | No | No | No | Yes | No | |
| G.723.1 | ITU-T | 1996-03 | G.723.1 (05/06) | Non-free | Various proprietary VoIP software | FFmpeg | voice recording | No | Yes | No | Yes | No | |
| G.726 | ITU-T | 1990-12 | Free | Various proprietary VoIP software | FFmpeg, Ekiga and other VoIP software | voice recording | No | Yes | No | No | No | ||
| G.728 | ITU-T | 1992-09 | Non-free | Various proprietary VoIP software | voice recording | No | Yes | No | Yes | No | |||
| G.729 | ITU-T | 1996-03 | G.729 (06/12) | Free[19] | Free | Various proprietary VoIP software | FFmpeg (decoding only) | voice recording | No | Yes | No | Expired[19] | No |
| G.729.1 | ITU-T | 2006-05 | G.729.1 Am.8 (03/13) | Free[19] | Free | Various proprietary VoIP software | voice recording, DECT telephony | No | Yes | No | No | No | |
| GSM-FR | ETSI Special Mobile Group | 1990-1994 (ETS 300 580-2) | ETSI EN 300 961 V8.1.1 (2000–11) | Free | FFmpeg (decoding only), FFmpeg with external library libgsm, Ekiga and other VoIP software | voice recording | No | Yes | No | ? | No
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