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Playable audio codecs as reported by your browser

Hover each cell for the MimeType used.

*These test files are not meant to be indicative of quality, they are only for testing player compatibility.

Legend

No	Not supported at all
Maybe	Might be supported, depends on a specific codec, resolution or bitrate.
Probably	Very likely supported. Though, playback may be contrained by other factors (memory, resolution, etc).

Codec | Container	MP4	WebM	OGG	Matroska†	3GP	QuickTime (.mov)	AVI	MPEG-TS
AAC	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown
MP3	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown
Apple Lossless	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown
FLAC	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown
Opus	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown
Vorbis	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown
G.711††	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown
↳ μ-law††	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown
↳ A-law††	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown
G.722††	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown
Adaptive-Multi-Rate	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown
↳ Narrowband	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown
↳ Wideband	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown
↳ Wideband+	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown
Speex	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown
(Container-only)	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown	Unknown

†	Matroska is usually supported on most browsers IF you use the WebM mime type when you serve the file. Browsers will generally play any codec in a Matroska file that they support.
††	G.711 and G.722 are usually only supported via WebRTC.

Other formats

Type	Supported
MPEG-4 Part 3 (.m4a)	Unknown
FLAC	Unknown
MP3	Unknown
Wave (.wav)	Unknown
MPEG-4 Part 3 (.m4a)	Unknown

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