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/**********************************************************************
Audacity: A Digital Audio Editor
Spectrum.h
Dominic Mazzoni
**********************************************************************/
#ifndef __AUDACITY_SPECTRUM__
#define __AUDACITY_SPECTRUM__
#include "FFT.h"
/*
This function computes the power (mean square amplitude) as
a function of frequency, for some block of audio data.
width: the number of samples
calculates windowSize/2 frequency samples
*/
MATH_API
bool ComputeSpectrum(const float * data, size_t width, size_t windowSize,
double rate, float *out, bool autocorrelation,
int windowFunc = eWinFuncHann);
#endif
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