Audio capture with USB microphone on Tizen TV

Smart TV
1

I plugged a USB microphone into TV to record external audio. In my .NET app (using Tizen .NET API in Visual Studio Professional 2022) I can detect it with AudioManager.GetConnectedDevices(). To record audio I set the privileges (microphone) and follow the instructions here:

Raw Audio Playback and Recording | Tizen Docs (Raw Audio Playback and Recording | Tizen Docs)

I tried both methods sync and asysnc:

Class AudioCapture (Class AudioCapture)

Class AsyncAudioCapture (Class AsyncAudioCapture)

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?

2

Hello,

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