/*
* Stop the audio capture, if currently recording. Properly disposes member objects.
*/
private void StopCapture()
{
if (capture.RecordingState == RecordingState.Recording)
{
capture.Stop();
finalSource.Dispose();
notificationSource.Dispose();
capture.Dispose();
sampleHandler = null;
}
}
/*
* Begin audio capture. Connects to WASAPI, initializes the sample handler, and begins
* sending captured data to it.
*/
private void StartCapture()
{
// Initialize hardware capture
capture = new WasapiLoopbackCapture();
capture.Initialize();
// Init sample handler
sampleHandler = new SampleHandler(capture.WaveFormat.Channels, capture.WaveFormat.SampleRate);
// Configure per-block reads rather than per-sample reads
notificationSource = new SingleBlockNotificationStream(new SoundInSource(capture).ToSampleSource());
notificationSource.SingleBlockRead += (s, e) => sampleHandler.Add(e.Left, e.Right);
finalSource = notificationSource.ToWaveSource();
capture.DataAvailable += (s, e) => finalSource.Read(e.Data, e.Offset, e.ByteCount);
// Start capture
capture.Start();
}
