[Webkit-unassigned] [Bug 230902] REGRESSION(Safari 15 - iOS15): [WebRTC] MediaStreamTack audio volume too low

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=230902

--- Comment #20 from Phong Le <lhphong09t2 at gmail.com> ---
(In reply to neo from comment #18)
> (In reply to Phong Le from comment #16)
> > Could you guide about how to use AudioContext to play this remote stream? I
> > researched and when using AudioContext to play, we must attach with an audio
> > element. Thanks
> 
> i tested iOS 15. (wkWebview)
> 
> // audio stream example
>  function connectToSpeaker(remoteAudioStream: MediaStream, gain: number) {
>     const context: AudioContext = window.AudioContext ||
> window.webkitAudioContext;
>     const audioNode = context.createMediaStreamSource(remoteAudioStream);
>     const gainNode: GainNode = context.createGain();
>     // some device volume too low ex) iPad
>     gainNode.gain.value = gain;
>     audioNode.connect(gainNode);
>     gainNode.connect(context.destination);
>   } 
> 
> and i'm not append video(with audio) element to document body. 
> i use canvas.

Wow, it works :) Thanks for sharing. Before, I tested this one on MacOS Safari but not work. Only work on iOS device :). I set gain 4 to iPhone and 2 to iPad.  The <audio> and <video> tag (play file by url not remote stream) is still very low volume

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