{
 "id": "advanced-audio-coding",
 "name": "Advanced Audio Coding",
 "family": "mpeg-4",
 "category": "audio",
 "identifiers": {
  "extensions": [
   "3gp",
   "aac",
   "m4a",
   "m4b",
   "m4p",
   "mp4"
  ],
  "mime": [
   "audio/aac",
   "audio/aacp",
   "audio/mp4a",
   "audio/mp4a-latm",
   "audio/mpeg4-generic",
   "audio/mpga",
   "audio/x-aac",
   "audio/x-m4a",
   "audio/x-m4b",
   "audio/x-m4p",
   "audio/x-mp4a-latm"
  ],
  "wikidata": [
   "Q337594"
  ],
  "loc_fdd": [
   "fdd000114",
   "fdd000233"
  ]
 },
 "status": "writable",
 "summary": "Audio compression format from MPEG",
 "tools": [
  {
   "name": "FFmpeg",
   "url": "https://ffmpeg.org",
   "license": "LGPL-2.1-or-later / GPL-2.0-or-later",
   "open_source": true,
   "reads": true,
   "writes": true
  },
  {
   "name": "A Better CD Encoder",
   "url": "https://abcde.einval.com/wiki/",
   "reads": false,
   "writes": true,
   "license": "Artistic License 1.0 / GNU General Public License, version 2.0 or later",
   "open_source": true
  },
  {
   "name": "Adobe After Effects",
   "url": "https://www.adobe.com/products/aftereffects",
   "reads": true,
   "writes": false,
   "license": "proprietary license"
  },
  {
   "name": "Audify Music Player",
   "url": "https://audifyplayer.com/",
   "reads": true,
   "writes": false,
   "license": "proprietary license"
  },
  {
   "name": "CoffeeCup MP3 Rip and Burn",
   "url": "https://www.wikidata.org/wiki/Q116568744",
   "reads": true,
   "writes": false
  },
  {
   "name": "EasyTAG",
   "url": "https://wiki.gnome.org/Apps/EasyTAG",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License, version 2.0 or later",
   "open_source": true
  },
  {
   "name": "Elisa",
   "url": "https://apps.kde.org/elisa/",
   "reads": true,
   "writes": false,
   "license": "GNU Lesser General Public License, version 3.0",
   "open_source": true
  },
  {
   "name": "Ex Falso",
   "url": "https://quodlibet.readthedocs.io/",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License",
   "open_source": true
  },
  {
   "name": "EZ CD Audio Converter",
   "url": "https://www.poikosoft.com/",
   "reads": true,
   "writes": true
  },
  {
   "name": "FAAC",
   "url": "https://sourceforge.net/projects/faac/",
   "reads": false,
   "writes": true,
   "license": "GNU Lesser General Public License, version 2.1 or later / GNU Library General Public License, version 2.0",
   "open_source": true
  },
  {
   "name": "Flowplayer",
   "url": "https://flowplayer.com",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License",
   "open_source": true
  },
  {
   "name": "Freemake Video Converter",
   "url": "http://www.freemake.com/free_video_converter/",
   "reads": true,
   "writes": false,
   "license": "freeware"
  },
  {
   "name": "GarageBand",
   "url": "https://www.apple.com/ios/garageband/",
   "reads": true,
   "writes": true
  },
  {
   "name": "Kodi",
   "url": "https://kodi.tv/",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License, version 2.0",
   "open_source": true
  },
  {
   "name": "Media Player (Windows 11)",
   "url": "https://www.wikidata.org/wiki/Q109616196",
   "reads": true,
   "writes": false
  },
  {
   "name": "MediaHuman Audio Converter",
   "url": "https://www.wikidata.org/wiki/Q55263594",
   "reads": true,
   "writes": false,
   "license": "freeware"
  },
  {
   "name": "Mp3tag",
   "url": "https://www.mp3tag.de/",
   "reads": true,
   "writes": false,
   "license": "free license"
  },
  {
   "name": "Nintendo 3DS Sound",
   "url": "https://www.wikidata.org/wiki/Q11325073",
   "reads": true,
   "writes": false
  },
  {
   "name": "PhotoRec",
   "url": "http://www.cgsecurity.org/wiki/PhotoRec",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License",
   "open_source": true
  },
  {
   "name": "Photorecovery",
   "url": "https://lc-tech.com/help/PhotoRecovery/English/index.html",
   "reads": true,
   "writes": false
  },
  {
   "name": "Pinnacle Studio 17 Ultimate",
   "url": "https://www.wikidata.org/wiki/Q123246373",
   "reads": true,
   "writes": false
  },
  {
   "name": "Q1063722",
   "url": "http://www.un4seen.com/",
   "reads": true,
   "writes": false,
   "license": "freeware"
  },
  {
   "name": "Q117725",
   "url": "https://picard.musicbrainz.org",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License, version 2.0",
   "open_source": true
  },
  {
   "name": "Q141674392",
   "url": "https://getartcraft.com/apps/soundcraft",
   "reads": true,
   "writes": false,
   "license": "Apache Software License 2.0 / MIT License",
   "open_source": true
  },
  {
   "name": "Q1576579",
   "url": "https://www.mixxx.org/",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License, version 2.0 or later",
   "open_source": true
  },
  {
   "name": "Q191782",
   "url": "https://www.audacityteam.org/",
   "reads": true,
   "writes": true,
   "license": "GNU General Public License, version 3.0",
   "open_source": true
  },
  {
   "name": "Q300915",
   "url": "https://www.foobar2000.org/",
   "reads": true,
   "writes": false,
   "license": "freeware"
  },
  {
   "name": "Quick Look",
   "url": "http://www.apple.com/findouthow/mac/#quicklook",
   "reads": true,
   "writes": false
  },
  {
   "name": "SHOUTcast",
   "url": "https://www.shoutcast.com/",
   "reads": true,
   "writes": false,
   "license": "freeware"
  },
  {
   "name": "SoX",
   "url": "https://www.wikidata.org/wiki/Q3487229",
   "reads": true,
   "writes": true,
   "license": "GNU General Public License",
   "open_source": true
  },
  {
   "name": "VideoStudio X7",
   "url": "https://www.wikidata.org/wiki/Q113644652",
   "reads": true,
   "writes": false
  },
  {
   "name": "Xilisoft Video Converter 3",
   "url": "https://www.wikidata.org/wiki/Q122229367",
   "reads": true,
   "writes": false
  },
  {
   "name": "MicroDicom",
   "url": "https://www.microdicom.com/",
   "reads": true,
   "writes": false,
   "license": "proprietary license",
   "via": "mpeg-4"
  },
  {
   "name": "OpenH264",
   "url": "https://www.openh264.org/",
   "reads": true,
   "writes": true,
   "license": "2-clause BSD License",
   "open_source": true,
   "via": "mpeg-4"
  }
 ],
 "projects": [
  {
   "name": "Wikidata Q337594",
   "url": "https://www.wikidata.org/wiki/Q337594",
   "kind": "wiki"
  }
 ],
 "provenance": {
  "sources": [
   "converters",
   "wikidata"
  ]
 },
 "updated": "2026-10-20",
 "conversions": [
  {
   "to": "flac-free-lossless-audio-codec-1-2-1",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.aac out.flac",
   "fidelity": "lossless",
   "losses": "Lossless for decoded audio; a lossy source stays as degraded as it was. WAV may reduce bit depth or drop metadata.",
   "url": "https://ffmpeg.org"
  },
  {
   "to": "waveform-audio",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.aac out.wav",
   "fidelity": "lossless",
   "losses": "Lossless for decoded audio; a lossy source stays as degraded as it was. WAV may reduce bit depth or drop metadata.",
   "url": "https://ffmpeg.org"
  },
  {
   "to": "mpeg-1-2-audio-layer-3",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.aac out.mp3",
   "fidelity": "lossy",
   "losses": "Lossy re-encoding.",
   "url": "https://ffmpeg.org"
  },
  {
   "to": "ogg",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.aac out.ogg",
   "fidelity": "lossy",
   "losses": "Lossy re-encoding.",
   "url": "https://ffmpeg.org"
  },
  {
   "to": "mpeg-4-part-14",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.aac out.mp4",
   "fidelity": "lossy",
   "losses": "Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.",
   "url": "https://ffmpeg.org"
  },
  {
   "to": "matroska-1-4",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.aac out.mkv",
   "fidelity": "lossy",
   "losses": "Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.",
   "url": "https://ffmpeg.org"
  },
  {
   "to": "webm",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.aac out.webm",
   "fidelity": "lossy",
   "losses": "Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.",
   "url": "https://ffmpeg.org"
  }
 ],
 "aliases": [],
 "structure": [],
 "parsers": [],
 "samples": [],
 "claims": [],
 "verification": []
}