WebRTC iOS - Audio is routed to internal speakers after connection is established between two peers

[Arnold Plakolli]

Hello everyone,

I'm working on a audio/video/chatting app, and I've got some issues with the way AVAudioSession is handled by WebRTC. 

I am specifically overriding the audio port so that audio goes through loud speakers using this: "AVAudioSession.sharedInstance().overrideOutputAudioPort(.speaker)", but after peer connection gets established (Meaning it's ICE state changes to "Connected") somehow WebRTC changes audio route to go through internal speakers. I want audio to not change route just because I get connected to another peer.

Maybe I'm missing some obvious thing in the API? Can anybody help me?

[Saúl Ibarra Corretgé]

The override will be reset when the session is reconfigured. You are better off choosing the right category / mode / options combo. If you choose the video chat mode, it defaults to the speaker, for instance.


Cheers,

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Saúl

[Henrik Andreasson]

WebRTC does not "handle" the audio session but leaves it to the client.

One example of calling overrideOutputAudioPort is in the AppRTCMobile demo client here:

https://cs.chromium.org/chromium/src/third_party/webrtc/examples/objc/AppRTCMobile/ios/ARDVideoCallViewController.m?q=overrideOutputAudioPort&sq=package:chromium&l=150

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[arnold....@solaborate.com]

Thanks, I'll try that.