d@0: /*
d@0:   ==============================================================================
d@0: 
d@0:     MFCC.h
d@0:     Created: 2 Sep 2014 3:30:50pm
d@0:     Author:  david.ronan
d@0: 
d@0:   ==============================================================================
d@0: */
d@0: 
d@0: #ifndef MFCC_H_INCLUDED
d@0: #define MFCC_H_INCLUDED
d@0: 
d@0: #include<vector>
d@0: 
d@0: class MFCC
d@0: {
d@0: public:
d@0: 	void initMFFCvariables(int NCoeffs, int Nfft, float fSampleRate);
d@0: 	void ComputeMFCC(float* magnitude, std::vector<float> &mfccs);
d@0: 	void freeMFCCmemory();
d@0: private:
d@0: 	// -------- MFFC computation
d@0: 	int     m_iNumMFCCCoefs;
d@0: 	int     m_iTotalMFCCFilters;
d@0: 	int*    m_pMFCCFilterStart;
d@0: 	int*    m_pMFCCFilterLength;
d@0: 	float** m_ppMFCCFilters;
d@0: 	float*  m_ppMFFC_DCT;
d@0: 	float*  m_fMelFilteredFFT;
d@0: 	float*  m_pMFCC;
d@0: 	float*  m_pfTempMelFilterResult;
d@0: 
d@0:   
d@0: // -------- tools
d@0: inline void  vDSP_vmul(float* v1,int stride1, float* v2, int stride2, float* out, int outstride, int iNumSamples);
d@0: 
d@0: inline float vDSP_sve(float* v, int stride, int iNumSamples);
d@0: 
d@0: inline void  vDSP_mmul(float* v1, int stride1, float* v2, int stride2, float* &vout, int strideOut, int M, int N, int P);
d@0: 
d@0: };
d@0: 
d@0: 
d@0: 
d@0: #endif  // MFCC_H_INCLUDED