private unsafe void process()
{
if (_fftStream.Length >= fftBins)
{
int samplesRead = _fftStream.Read(fftBufferPtr, fftBins);
// http://www.designnews.com/author.asp?section_id=1419&doc_id=236273&piddl_msgid=522392
float fftGain = (float)(10.0 * Math.Log10(fftBins / 2.0));
float offset = 24.0f - fftGain + _fftOffset;
decimator.Process(fftBufferPtr, samplesRead);
if (checkBox1.Checked)
{
fixed(float *w = hammingWindow)
{
FFT.ApplyWindow(fftBufferPtr, w, samplesRead);
}
}
sFFT.updateData(fftBufferPtr, samplesRead);
sFFT.execute();
sFFT.copyOutput(fftBufferPtr, samplesRead);
lock (powerBuffer) {
FFT.SpectrumPower(fftBufferPtr, powerPtr, samplesRead, offset);
}
}
}
