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1 /*
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2 ==============================================================================
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3
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4 MFCC.h
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5 Created: 2 Sep 2014 3:30:50pm
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6 Author: david.ronan
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7
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8 ==============================================================================
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9 */
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10
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11 #ifndef MFCC_H_INCLUDED
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12 #define MFCC_H_INCLUDED
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13
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14 #include<vector>
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15
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16 class MFCC
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17 {
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18 public:
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19 void initMFFCvariables(int NCoeffs, int Nfft, float fSampleRate);
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20 void ComputeMFCC(std::vector<float> magnitude, std::vector<float> &mfccs);
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21 private:
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22 // -------- MFFC computation
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23 int m_iNumMFCCCoefs;
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24 int m_iTotalMFCCFilters;
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25 std::vector<int> m_pMFCCFilterStart;
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26 std::vector<int> m_pMFCCFilterLength;
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27 std::vector<std::vector<float>> m_ppMFCCFilters;
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28 std::vector<float> m_ppMFFC_DCT;
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29 std::vector<float> m_fMelFilteredFFT;
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30 std::vector<float> m_pMFCC;
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31 std::vector<float> m_pfTempMelFilterResult;
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32
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33 void MultiplyVector(std::vector<float> v1, std::vector<float> v2, std::vector<float> &out, int iNumSamples);
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34
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35 float SumVector(std::vector<float> v);
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36
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37 void MultiplySumVector(std::vector<float> v1, std::vector<float> v2, std::vector<float> &vout, int M, int P);
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38
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39 };
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40
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41
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42
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43 #endif // MFCC_H_INCLUDED
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