[BUG] AudioGraph::CreateDeviceOutputNodeAsync fails if Chrome is playing youtube

Question

It fails with AudioDeviceNodeCreationStatus::DeviceNotAvailable, and this is regardless of the choice of primary render device. The bug can be reproduced with the UWP AudioCreation sample by adding the following lines to the CreateAudioGraph() method in Scenario one.

The problem goes away if ChannelCount = 2.

private async Task CreateAudioGraph()
        {
            // Create an AudioGraph with default settings
            AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);

            var encoding  = new Windows.Media.MediaProperties.AudioEncodingProperties();
            encoding.BitsPerSample=32;
            encoding.ChannelCount=1;
            encoding.SampleRate=44100;
            encoding.Bitrate=encoding.BitsPerSample * encoding.ChannelCount * encoding.SampleRate;
            encoding.Subtype="Float";
            settings.EncodingProperties = encoding;

            ...

}

I have also found other bugs, and dubious behaviour. It seems AudioGraph was quite rushed.

Answer 1

Hello,
Welcome to Microsoft Q&A!

AudioGraph::CreateDeviceOutputNodeAsync fails if Chrome is playing youtube

I tried above code, it works well in AudioCreation sample scenario1. it never throw exception when Chrome is playing video. it looks more related with your physical device, please try to exclude it manually, if the problem is still exist, please try update your os to latest version.

Thank you.

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