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Help/Watching and the player/Formats and compatibility

Audio formats, and why sound almost always works

mtivi ships its own audio decoders, so a track your device refuses still plays. Dolby and DTS still reach your receiver untouched.

1 min readUpdated 20 Sep 2026

Unlike video, audio has a safety net. mtivi carries decoders for sixteen formats, so a stream your device cannot handle on its own is still heard.

Covered by the built-in decoders

Family Formats
Dolby Dolby Digital, Dolby Digital Plus, Dolby TrueHD and its lossless base
DTS DTS and its variants
MPEG audio MP2 and MP3. MP2 matters: a great many live channels still use it
Open formats Opus, Vorbis, FLAC
Apple ALAC
Windows Media WMA and WMA Pro
Older and rare RealAudio Cook, XMA

Everything your device already decodes, AAC included, is used directly.

Dolby and DTS passthrough

When your TV, soundbar or receiver can decode the format, mtivi hands the sound over untouched so Atmos objects and surround layouts survive. The device’s own decoder is preferred, and the built-in ones only fill gaps.

One exception. On devices that cannot do both at once, turning on live captions forces the audio to be processed, which ends passthrough for that session.

Choosing a track

Streams often carry several languages. Pick one in the player, or set a preferred language once under Settings, then Playback. See Audio tracks, preferred language and passthrough.

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