/// <summary>
/// Calculate the weighted volume of a sound source.
/// NB: this consumes lots of memory for long sources.
/// </summary>
/// <param name="src"></param>
/// <param name="dbSPL"></param>
/// <returns>Volume (units, not dB)</returns>
public static double WeightedVolume(ISoundObj src, double dbSPL, double dbSPLBase)
{
double wv = 0;
for (ushort c = 0; c < src.NumChannels; c++)
{
SingleChannel channel = src.Channel(c);
wv += Loudness.WeightedVolume1(channel, dbSPL, dbSPLBase);
}
src.Reset();
wv = wv / src.NumChannels;
return(wv);
}
public static FilterProfile DifferentialSPL(double phon0, double phon1, double scale)
{
FilterProfile spl = new FilterProfile();
FilterProfile spl0 = Loudness.SPL(phon0);
FilterProfile spl1 = Loudness.SPL(phon1);
for (int j = 0; j < spl1.Count; j++)
{
FreqGain fg = spl1[j];
fg.Gain = scale * (spl0[j].Gain - fg.Gain);
spl.Add(fg);
}
return(spl);
}