private float[] calculateLogAverages(float[] freqs)
{
var realWidth = this.formWidth / this.pixelsPerLine;
const int shift = 0;
var width = realWidth + shift;// width used to ignore low frequences
int samples = freqs.Length;
var averages = new WeightedAverage(realWidth);
float logRatio = width / (float)Math.Log(samples, 2);
for (int i = 1; i < samples; i++)
{
float freq = i;
float amp = freqs[i];
float logFreq = (float)Math.Log(i, 2);
int newIndex = (int)(logFreq * logRatio) - shift;
if (newIndex >= 0)
{
averages.Add(newIndex, amp);
}
}
return(averages.GetAverges());
}
private static void findBand(WeightedAverage averages, float[] bandThresholds, float freq, float amp)
{
for (int n = 0; n < averages.Length; n++)
{
if (freq < bandThresholds[n])
{
averages.Add(n, amp);
return;
}
}
throw new Exception("Should have returned in for loop");
}