/// <summary>
/// Return a list of freq/gain, at the ERB centers
/// Assuming you smoothed the data...
/// </summary>
/// <param name="data">data from ERB.smooth</param>
/// <param name="sr">sample rate</param>
/// <param name="scaleFactor">1.0 for ~38 bands. 0.5 for twice as many...</param>
/// <returns></returns>
public static FilterProfile profile(double[] data, uint sr, double scaleFactor)
{
FilterProfile pts = new FilterProfile();
int dl = data.Length;
for (double j = 1; j < ERB.ERBVal(sr / 2) + 1; j += scaleFactor)
{
double f = ERB.invERBVal(j);
double n = f * 2 * dl / sr;
if (n < dl)
{
double g = data[(int)n];
pts.Add(new FreqGain(f, g));
}
}
return(pts);
}
public static double bin2f(double bin, uint sr)
{
double scale = (_bins / ERB.ERBVal(sr / 2));
return(ERB.invERBVal(bin / scale));
}
public static double f2bin(double f, uint sr)
{
double scale = (_bins / ERB.ERBVal(sr / 2));
return(ERB.ERBVal(f) * scale);
}
