view cpp-qm-dsp/CQKernel.h @ 22:701900c371b0

Calculate (so far unnormalised) CQ kernel

#ifndef CQ_KERNEL_H
#define CQ_KERNEL_H

#include <vector>

class FFT;

class CQKernel
{
public:
    CQKernel(double sampleRate, double maxFreq, int binsPerOctave);
    ~CQKernel();
    
    struct Properties {
	double sampleRate;
	double maxFrequency;
	double minFrequency;
	int binsPerOctave;
	int fftSize;
	int fftHop;
	int atomsPerFrame;
	int atomSpacing;
	int firstCentre;
	double Q;
    };

    Properties getProperties() const { return m_p; }

private:
    Properties m_p;
    FFT *m_fft;

    struct KernelMatrix {
	std::vector<int> offsets;
	std::vector<std::vector<double> > real;
	std::vector<std::vector<double> > imag;
    };
    KernelMatrix m_kernel;

    void generateKernel();
};

#endif