public SampleAggregator(int fftLength)
{
if (!IsPowerOfTwo(fftLength))
{
throw new ArgumentException("FFT Length must be a power of two");
}
this.m = (int)Math.Log(fftLength, 2.0);
this.fftLength = fftLength;
this.fftBuffer = new Complex[fftLength];
this.fftArgs = new FftEventArgs(fftBuffer);
}
private void FftCalculated(object sender, FftEventArgs e)
{
var highestValue = new Complex();
int index = 0;
foreach (var complex in e.Result)
{
if (highestValue.Y == 0 || complex.Y > highestValue.Y && index < 25 && index > 5)
{
highestValue = complex; // get tones between 25 / 145 hz
}
index++;
}
_averageValues.Add(highestValue);
}
