How to set initial AudioTrack index

[rangermanWSC]

What do you want to do with Hls.js?

Hi, is there a way to set an initial audioTrack other then the default (0) ?
Because if I change it manually after the parsed event then I get some delay.

What have you tried so far?

No response

[robwalch]

The initial audio track is selected on LEVEL_SWITCHING after AUDIO_TRACKS_UPDATED by picking the first option with DEFAULT=YES. To override, set hls.audioTrack on AUDIO_TRACKS_UPDATED. The index set should be from one of hls.audioTracks in AUDIO_TRACKS_UPDATED.

[rangermanWSC]

Thanks @robwalch, but my problem is that I want to decide what track to play dynamically from the code, and not change the manifest (so DEFAULT=YES will not help me).
And when I change the hls.audioTrack on the AUDIO_TRACKS_UPDATED I still get some delay and can hear the first audio for a short time.
I wondered why we can't pass the audioTrack index when we create the new HLS()

[robwalch]

when I change the hls.audioTrack on the AUDIO_TRACKS_UPDATED I still get some delay and can hear the first audio for a short time.

Is there audio in the main track? No other audio playlists are loaded when done properly. AUDIO_TRACKS_UPDATED is emitted before any audio is loaded so this sounds like either an error in your implementation or a bug. Please file one with steps to reproduce so that we can look into it.

I wondered why we can't pass the audioTrack index when we create the new HLS()

That's not yet a feature. See #5532.

[robwalch]

Hi @rangermanWSC,

I just added a change in #5880 that should allow track selection in the AUDIO_TRACKS_UPDATED event handler. Let me know if this works for you. Thanks!