private IWaveSource CreateWaveSource(ISampleSource sampleSource, CustomFftProvider fftProvider)
{
var sampleStream = new SingleBlockNotificationStream(sampleSource);
sampleStream.SingleBlockRead += (s, a) => fftProvider.Add(a.Left, a.Right);
return(sampleStream.ToWaveSource(16));
}
public FftResultStream(FftSize fftSize, WindowFunction windowFunction, MMDevice device)
{
FftSize = (int)fftSize;
Device = device;
_fft = new float[(int)fftSize];
_wasapiCapture = CreateWaspiCapture();
var sampleSource = CreateSampleSource(_wasapiCapture);
_fftProvider = new CustomFftProvider(sampleSource.WaveFormat.Channels, fftSize, windowFunction);
_waveSource = CreateWaveSource(sampleSource, _fftProvider);
_buffer = new byte[_waveSource.WaveFormat.BytesPerSecond / 2];
}