[Webkit-unassigned] [Bug 198545] iOS not hearing other participant

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=198545

Anna Vasilko <avasilko at twilio.com> changed:

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                 CC|                            |avasilko at twilio.com

--- Comment #14 from Anna Vasilko <avasilko at twilio.com> ---
We hit this issue a lot with Safari 13 exactly as described by the initial reporter.
iOS Safari can't hear one of the remote participants in a multi-party call.

And to emphasize, this is NOT related to backgrounding, and the tracks are not silent/muted, all remote tracks look normal, enabled, not ended, not muted, "live", etc. 

Calling .pause() then .play() on the audio element fixes it, but we can't find a way to detect it programmatically. 

The issue seems to be related to audio track rendering, it happens normally when someone joins the room with several participants or dominant speaker changes (basically on any activity which results in re-rendering of audio elements).

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