[Webkit-unassigned] [Bug 236219] [iOS] Volume of non MediaStreamTrack-based audio reduces when capturing microphone

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=236219

--- Comment #24 from John <jdq at yabla.com> ---
I made a video so anyone can see on their own iPad or iPhone the audio playback problems we are having when mic recording is also present as an option on the same page:

iOS iPadOS mic issue —media audio playback volume and quality | BlueTooth Audio lost
https://youtu.be/vAn27TWvz9w
(Demo of how anyone can try Speak game on french.yabla.com) 

When using iPad/ iPhone and Safari browser, and mic permission is granted, and there is a "record via mic" feature that can be user selected:

• the video clip volume goes down in Speak game, you can't turn it up
• if using a bluetooth headset you lose audio, it switches to device speaker
• even if you turn the device volume down all the way, you can still hear it some
• the sound quality of the clip playback is distorted

>From what I gather from the discussion above, 
"setMicrophoneActive"  is not yet available in a public production release of Safari browser, 
but once it is, we are going to want to make sure to set
setMicrophoneActive (False) when we are not actively recording with the mic, so that media playback (low) volume and hopefully other issues (such as loss of BlueTooth audio) are solved.

>From what I gather setMicrophoneActive is now available on Safari Tech Preview.
I don't know how to get Safari Tech Preview for iPadOS or iOS — do you have to log in as an Apple Developer to be able to install that?

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