[Webkit-unassigned] [Bug 218012] Audio Volume reduces considerably on accepting the mic permissions.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=218012

Varun D <varundabke at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |varundabke at gmail.com

--- Comment #18 from Varun D <varundabke at gmail.com> ---
Thanks for the trick.
I tried this solution. This improved audio level - but only till the code acquired MIC stream.
If I deny the Mic permission when it is asked later - the volume still continued to be good. But as soon as I say 'yes' to mic permissions - volume goes to very low.
I am using iPhone XR with 15.1 iOS.
May I know what is your setup where it stayed High even after giving mic permissions? @David

(In reply to David Gölzhäuser from comment #17)
> I am currently working on a workaround, I made some progress.
> 
> 
> Here is our use case.
> 
> Web based WebRTC Application that initially receives a Video Stream, then
> when calling the remote peer the local and remote audio will be enabled
> 
> The current implementation acquired the devices local microphone stream and
> added its track to the RTCPeerConnection, this triggered a renegotiate and
> eventually in receiving the remote peers audio stream. => Remote Audio was
> emitted through the earpiece
> 
> I restructured this behavior because I noticed the correct speaker is used
> when first receiving the remote peers audio stream and then acquiring the
> local devices microphone stream. => Remote Audio was emitted through the
> speaker
> 
> However, this only works once per app livecycle (Cordova based App). So I am
> still working on it, but its an improvement.
> 
> 
> FYI:
> I simply add the empty Track
> `audioContext.createMediaStreamDestination().stream.getAudioTracks()[0]` to
> the RTCPeerConnection, then when the mic stream is acquired I simply replace
> the former added track with the local microphone track of the resulting
> RTCSender (from the RTCPeerConnections function `addTrack`)

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