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Codecs
Crysisjim edited this page May 29, 2026
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| Codec | Extension | Max Surround | Loudnorm | Typical Bitrates |
|---|---|---|---|---|
| AAC | .aac |
7.1 (8ch) | ✅ | 96–320 kbps |
| Dolby Digital Plus |
.eac3 / .mka
|
7.1 (8ch) | ✅ | 128–640+ kbps |
| Dolby Digital |
.ac3 / .mka
|
5.1 (6ch) | ✅ | 192–640 kbps |
| DTS |
.dts / .mka
|
5.1 (6ch) | ❌ | 192–1536 kbps |
| MP3 | .mp3 |
Stereo (2ch) | ✅ | 64–320 kbps |
| Opus | .opus |
7.1 (8ch) | ✅ | 32–256 kbps |
| FLAC | .flac |
8ch | ❌ | Lossless |
| ALAC | .m4a |
8ch | ❌ | Lossless |
| Vorbis | .ogg |
8ch | ✅ | 64–320 kbps |
| WMA v2 | .wma |
Stereo (2ch) | ✅ | 64–320 kbps |
| PCM 16-bit | .wav |
8ch | ❌ | Uncompressed |
AAC — Encoding modes: CBR (fixed bitrate), VBR (variable), ABR (average)
Profiles: aac_low (standard), aac_he (low bitrate), aac_he_v2 (very low, stereo only)
MP3 (libmp3lame) — CBR (universal compatibility) or VBR quality 0 (best, ~245 kbps) to 9 (lowest, ~65 kbps)
Opus — VBR on (recommended) or VBR off (constant bitrate)
| Use Case | Recommended Codec | Bitrate |
|---|---|---|
| TV Series 5.1 | Dolby Digital Plus | 448–640 kbps |
| TV Series 2.0 | Dolby Digital Plus | 192–256 kbps |
| Music HQ | Opus | 256 kbps |
| Web / Streaming | Opus | 96–128 kbps |
| Archiving | FLAC | Lossless |
| Podcast | AAC | 128–192 kbps |
| Codec | Extension | Surround max | Loudnorm | Bitrates typiques |
|---|---|---|---|---|
| AAC | .aac |
7.1 (8ch) | ✅ | 96–320 kbps |
| Dolby Digital Plus |
.eac3 / .mka
|
7.1 (8ch) | ✅ | 128–640+ kbps |
| Dolby Digital |
.ac3 / .mka
|
5.1 (6ch) | ✅ | 192–640 kbps |
| DTS |
.dts / .mka
|
5.1 (6ch) | ❌ | 192–1536 kbps |
| MP3 | .mp3 |
Stéréo (2ch) | ✅ | 64–320 kbps |
| Opus | .opus |
7.1 (8ch) | ✅ | 32–256 kbps |
| FLAC | .flac |
8ch | ❌ | Sans perte |
| ALAC | .m4a |
8ch | ❌ | Sans perte |
| Vorbis | .ogg |
8ch | ✅ | 64–320 kbps |
| WMA v2 | .wma |
Stéréo (2ch) | ✅ | 64–320 kbps |
| PCM 16-bit | .wav |
8ch | ❌ | Non compressé |
AAC — Modes : CBR (fixe), VBR (variable), ABR (moyen)
Profils : aac_low (standard), aac_he (bas bitrate), aac_he_v2 (très bas, stéréo uniquement)
MP3 (libmp3lame) — CBR (compatible partout) ou VBR qualité 0 (meilleure, ~245 kbps) à 9 (pire, ~65 kbps)
Opus — VBR on (recommandé) ou VBR off (bitrate constant)
| Usage | Codec recommandé | Bitrate |
|---|---|---|
| Série TV 5.1 | Dolby Digital Plus | 448–640 kbps |
| Série TV 2.0 | Dolby Digital Plus | 192–256 kbps |
| Musique HQ | Opus | 256 kbps |
| Web/streaming | Opus | 96–128 kbps |
| Archivage | FLAC | Sans perte |
| Podcast | AAC | 128–192 kbps |