[Webkit-unassigned] [Bug 218762] Stuttering audio from WebRTC in iOS 14.2

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=218762

Mikael Nousiainen <tmnousia at gmail.com> changed:

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                 CC|                            |tmnousia at gmail.com

--- Comment #36 from Mikael Nousiainen <tmnousia at gmail.com> ---
I've experienced the same issue -- very choppy/intermittent playback -- in Safari (on both iPhone and iPad) and more recently also on desktop Safari on macOS.

I have not been able to get smooth WebRTC live Opus audio playback on Apple Safari browsers since June (maybe somewhere around iOS 13.5 release?) and it seems the affects the macOS desktop Safari as well. I've had no issues running the same code in Firefox or Chrome at any point, so the audio problem seems to be very specific to Safari.

While the problem appears in a more pronounced way in an application I'm developing and the JS fiddle presented in this bug, I'm able to reproduce similar short pauses in audio when using the official Janus WebRTC gateway Streaming test page using the "War of the Worlds" live Opus audio stream: https://janus.conf.meetecho.com/streamingtest.html -- this could be yet another test case.

I've tested this using the following devices, which both produce exactly the same issue on audio being very choppy:
* Safari on iOS 14.2 (iPhone 7)
* Safari 14.0.1 (16610.2.11.51.8) on macOS Big Sur 11.0.1

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