No audio, error messages related to "aurioc"

[derwaldgeist]

Hi,

since some days, audio transmission stopped working on iOS devices. The same app configuration worked weeks ago, so I guess this is related to a recent iOS update, currently I am using 10.1.1.

If I start a WebRTC session on iOS, the video appears as expected. But as soon as the peer tries to connect, the video freezes and it takes a long time until the following errors are being thrown in the Xcode console:

[aurioc] 1316: AUIOClient_StartIO failed (-66637)
[aurioc] 1590: AURemoteIO@0x14023b840: IOThread exiting with error 0x10004006
[aurioc] 1316: AUIOClient_StartIO failed (-66637)

Then, the video connection is established and the video commences, but I can hear no audio. Obviously, there's a problem with the audio connection. Sometimes, also the remote video freezes and it takes a long time until it starts playing correctly.

Any ideas what may cause this? Any help is appreciated. Thanks.

PS: On my old iPad 3 with iOS 9, everything is working just fine.

[derwaldgeist]

Update: The problem disappeared after I restarted my iPad. I found some hints on Google that this sometimes happens on the latest 10.1.1 and also Apple's ear-phones are affected by this bug. Closing this now, as it wasn't a bug in iOSRTC.