Method FFT

src/extended/SpectralMonitorNode.cpp:30–35

{
public:
    FFT(int size)
        : size(size)
    {
        oouraIp = (int *) calloc(2 + (int) sqrt(size / 2), sizeof(int));
        oouraW = (float *) calloc(size / 2, sizeof(float));
    }

    ~FFT()
    {