[Webkit-unassigned] [Bug 211959] New: All Web Audio output mono after capturing microphone with getUserMedia

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=211959

            Bug ID: 211959
           Summary: All Web Audio output mono after capturing microphone
                    with getUserMedia
           Product: WebKit
           Version: Safari 13
          Hardware: iPhone / iPad
                OS: iOS 13
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Audio
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: rykkers at gmail.com

When playing audio files where the audio comes only out of either the left or right channel.

Normally the audio file plays fine, but after capturing the user's microphone using getUserMedia, this causes the audio file to play equally out of both left a right channels.

This has been tested using pre-prepared stereo audio files in <audio> elements, also using buffered streams and the AudioContext.

I've seen it hinted that this is due to the AudioContext switching to "call" mode. But haven't seen any documentation, or ability to switch this mode back manually.

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