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#ifndef _FFT
#define _FFT
#ifndef M_PI
#define M_PI 3.14159265358979323846 /* pi */
#endif
class fft {
public:
fft();
~fft();
/* Calculate the power spectrum */
void powerSpectrum(int start, int half, float *data, int windowSize,float *magnitude,float *phase, float *power, float *avg_power);
/* ... the inverse */
void inversePowerSpectrum(int start, int half, int windowSize, float *finalOut,float *magnitude,float *phase);
void processLogXScale(const float * data,unsigned int insize, double fMax,
float * avout, float * pkout, unsigned int outsize,
float f1, float f2);
float avout[15];
float pkout[15];
};
#endif
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