Supported Codecs

Supported codecs.

On mobile OS

Actually, the following codecs are supported by flutter_sound:

	iOS encoder	iOS decoder	Android encoder	Android decoder
AAC ADTS	✅	✅	✅ (1)	✅
Opus OGG	✅ (*)	✅ (*)	❌	✅ (1)
Opus CAF	✅	✅	❌	✅ (*) (1)
MP3	❌	✅	❌	✅
Vorbis OGG	❌	❌	❌	✅
PCM16	✅	✅	✅ (1)	✅
PCM Wave	✅	✅	✅ (1)	✅
PCM AIFF	❌	✅	❌	✅ (*)
PCM CAF	✅	✅	❌	✅ (*)
FLAC	✅	✅	❌	✅
AAC MP4	✅	✅	✅ (1)	✅
AMR NB	❌	❌	✅ (1)	✅
AMR WB	❌	❌	✅ (1)	✅
PCM8	❌	❌	❌	❌
PCM F32	❌	❌	❌	❌
PCM WEBM	❌	❌	❌	❌
Opus WEBM	❌	❌	✅	✅
Vorbis WEBM	❌	❌	❌	✅

This table will eventually be upgraded when more codecs will be added.

• ✅ (*) : The codec is supported by Flutter Sound, but with a File Format Conversion. This has several drawbacks :

  • Needs FFmpeg. FFmpeg is not included in the LITE flavor of Flutter Sound

  • Can add some delay before Playing Back the file, or after stopping the recording. This delay can be substancial for very large records.

• ✅ (1) : needs MinSDK >=23

On Web browsers

	Chrome encoder	Chrome decoder	Firefox encoder	Firefox decoder	Webkit encoder (safari)	Webkit decoder (Safari)
AAC ADTS	❌	✅	❌	✅	❌	✅
Opus OGG	❌	✅	✅	✅	❌	❌
Opus CAF	❌	❌	❌	❌	❌	✅
MP3	❌	✅	❌	✅	❌	✅
Vorbis OGG	❌	✅	❌	✅	❌	❌
PCM16	❌	✅	❌	✅	❌	❌	(must be verified)
PCM Wave	❌	✅	❌	✅	❌	❌
PCM AIFF	❌	❌	❌	❌	❌	❌
PCM CAF	❌	❌	❌	❌	❌	✅
FLAC	❌	✅	❌	✅	❌	✅
AAC MP4	❌	✅	❌	✅	❌	✅
AMR NB	❌	❌	❌	❌	❌	❌
AMR WB	❌	❌	❌	❌	❌	❌
PCM8	❌	❌	❌	❌	❌	❌
PCM F32	❌	❌	❌	❌	❌	❌
PCM WEBM	❌	❌	❌	❌	❌	❌
Opus WEBM	✅	✅	✅	✅	❌	❌
Vorbis WEBM	❌	✅	❌	✅	❌	❌

• Webkit is bull shit : you cannot record anything with Safari, or even Firefox/Chrome on iOS.

• Opus WEBM is a great Codec. It works on everything (mobile and Web Browsers), except Apple

• Edge is same as Chrome