public static IEnumerable <Complex[]> Forward(IList <double> data, int window, int step, Action <double> progress)
{
var total = 0;
for (int i = 0; i < data.Count - window + 1; i += step)
{
total++;
}
var count = 0;
for (int i = 0; i < data.Count - window + 1; i += step)
{
var w = new double[window];
for (int j = 0; j < window; j++)
{
w[j] = data[i + j];
}
var cur = Fft.Forward(w);
count++;
progress(100.0 * count / total);
yield return(PackSpectra(cur, window));
}
}
public static void BackOneWindow(double[] data, double[] mask, Complex[] sp, int window, int position)
{
Fill(data, mask, Fft.Back(UnpackSpectra(sp, window)), position);
}