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      Latest reply on Oct 23, 2019 6:16 AM by sarsonj2
      sarsonj2 Level 1 Level 1 (0 points)



        we are using C based Audio Graph API in our app, graph consists of MultiChannelMixer and RemoteIO audio unit, where we are using both input and output. We have also enabled background audio mode (using UIBackgroundModes in plist).


        Now when we start that audio graph, everythings works fine. However, when we stopped that graph, the Microphone indicator appear for second or so, even when I am in foreground (on "square" phones - like iPhone 8 it appears for fraction of second, so that it is even more weird). See attached video, when I tap on camera button, it just calls AUGraphStop on running graph.


        When I remove audio from UIBackgroundModes, the problem disappear.


        Link to video, that shows the problem: https://youtu.be/1xNUX9zizIo


        Any idea, what can cause this?