private void StopCSCore()
{
if (_soundOut != null)
{
_soundOut.Stop();
_soundOut.Dispose();
_soundOut = null;
}
if (_soundIn != null)
{
_soundIn.Stop();
_soundIn.Dispose();
_soundIn = null;
}
if (_source != null)
{
_source.Dispose();
_source = null;
}
if (_lineSpectrum != null)
{
_lineSpectrum = null;
}
}
const FftSize fftSize = FftSize.Fft4096; //4096 sample values
/// <summary>
///
/// </summary>
/// <param name="aSampleSource"></param>
private void SetupSampleSource(ISampleSource aSampleSource)
{
//create a spectrum provider which provides fft data based on some input
spectrumProvider = new BasicSpectrumProvider(aSampleSource.WaveFormat.Channels,
aSampleSource.WaveFormat.SampleRate, fftSize);
//linespectrum and voiceprint3dspectrum used for rendering some fft data
//in oder to get some fft data, set the previously created spectrumprovider
_lineSpectrum = new LineSpectrum(fftSize)
{
SpectrumProvider = spectrumProvider,
UseAverage = true,
BarCount = 128,
BarSpacing = 2,
IsXLogScale = true,
ScalingStrategy = ScalingStrategy.Sqrt,
MaximumFrequency = 20000,
MinimumFrequency = 20,
};
/*
* _voicePrint3DSpectrum = new VoicePrint3DSpectrum(fftSize)
* {
* SpectrumProvider = spectrumProvider,
* UseAverage = true,
* PointCount = 200,
* IsXLogScale = true,
* ScalingStrategy = ScalingStrategy.Sqrt
* };
*/
//the SingleBlockNotificationStream is used to intercept the played samples
var notificationSource = new SingleBlockNotificationStream(aSampleSource);
//pass the intercepted samples as input data to the spectrumprovider (which will calculate a fft based on them)
notificationSource.SingleBlockRead += (s, a) => spectrumProvider.Add(a.Left, a.Right);
_source = notificationSource.ToWaveSource(16);
}
