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];
Values = new float[fftLength];
this._fftArgs = new FftEventArgs(_fftBuffer);
}
void FftCalculated(object sender, FftEventArgs e)
{
double[] spect = new double[e.Result.Length];
var l = e.Result.Length;
for (int i = 0; i < l; i++)
{
spect[i] = e.Result[i].X * e.Result[i].X + e.Result[i].Y * e.Result[i].Y;
}
double freq = FrequencyUtils.FindFundamentalFrequency(spect, _sampleAggregator.Values, SampleRate, MinFreq, MaxFreq);
Debug.WriteLine(freq);
var note = NoteFinder.FindNearestNote(freq);
OnNoteDetected(note, freq);
}
