public void LoadWavPart(WavPartInfo wp, int startPos)
{
if (startPos < 0 || this.WavData_L.Length - WINDOW_SIZE < startPos) // ? startPos out of range
{
for (int offset = 0; offset < WINDOW_SIZE; offset++)
{
wp.WavPart_L[offset] = 0.0;
wp.WavPart_R[offset] = 0.0;
}
}
else
{
for (int offset = 0; offset < WINDOW_SIZE; offset++)
{
double rate = offset * 1.0 / (WINDOW_SIZE - 1);
double hh = Hamming(rate);
wp.WavPart_L[offset] = this.WavData_L[startPos + offset] * hh;
wp.WavPart_R[offset] = this.WavData_R[startPos + offset] * hh;
}
}
}
public double GetSpectrum_R(WavPartInfo wp, int hz)
{
return(this.GetSpectrum(hz, wp.WavPart_R));
}
public double GetSpectrum(WavPartInfo wp, int hz)
{
// memo: 左右の波形の位相がずれている可能性を考慮すると、スペクトラムは左右別々に取得する必要がある。
return((this.GetSpectrum_L(wp, hz) + this.GetSpectrum_R(wp, hz)) / 2.0);
}
