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Audio capture with USB microphone on Tizen TV


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I plugged a USB microphone into TV to record external audio. In my .NET app I can detect it with AudioManager.GetConnectedDevices(). To record audio I set the privileges (microphone) and follow the instructions here:

https://docs.tizen.org/application/dotnet/guides/multimedia/raw-audio/

I tried both methods sync and asysnc:

https://docs.tizen.org/application/dotnet/api/TizenFX/API11/api/Tizen.Multimedia.AudioCapture.html

https://docs.tizen.org/application/dotnet/api/TizenFX/API11/api/Tizen.Multimedia.AsyncAudioCapture.html

I instantiate AudioCapture or AsyncAudioCapture objects and when I invoke the Prepare() method the app crashes without any exception or error message.

Simplified code snippet:

AudioCapture audioCapture = new AudioCapture(44100, AudioChannel.Mono, AudioSampleType.S16Le);

int bufferSize = audioCapture.GetBufferSize();
const int RecordingSec = 1;
bufferSize *= 10 * RecordingSec;

audioCapture.Prepare();  // THIS LINE CRASHES
byte[] buffer = audioCapture.Read(bufferSize);

The same result is on two different models (Tizen 6.0 and Tizen 6.5).

How can I record audio from microphone on Tizen TV? What am I missing?

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You're trying to record audio from a USB microphone on your Tizen TV using .NET, but your app crashes when you call Prepare() on the AudioCapture object. You've already set the correct permissions and followed the documentation, but it still doesn't work.

Here are a few things you could try:

  1. Double-check the Tizen version and API compatibility with your TV models.
  2. Make sure the microphone is supported by the TV.
  3. Test a different USB microphone if possible.
  4. Look for any Tizen platform-specific limitations or updates that might help.

Hope this helps!

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