public static double[] ExtractModalNoiseSubband(double[] modalNoise, int minHz, int maxHz, bool doMelScale, int nyquist, double binWidth)
{
//extract subband modal noise profile
AcousticEvent.ConvertHertzToFrequencyBin(doMelScale, minHz, maxHz, nyquist, binWidth, out var c1, out var c2);
int subbandCount = c2 - c1 + 1;
var subband = new double[subbandCount];
for (int i = 0; i < subbandCount; i++)
{
subband[i] = modalNoise[c1 + i];
}
return(subband);
}
public static double[,] ExtractFreqSubband(double[,] m, int minHz, int maxHz, bool doMelscale, int binCount, double binWidth)
{
AcousticEvent.ConvertHertzToFrequencyBin(doMelscale, minHz, maxHz, binCount, binWidth, out var c1, out var c2);
return(DataTools.Submatrix(m, 0, c1, m.GetLength(0) - 1, c2));
}