annotate dsp/phasevocoder/PhaseVocoder.h @ 3:07ac3de1e53b
* Give the chromagram an alternative entry point passing in frequency domain
data
* Centre the Hamming windows and do an fftshift when calculating sparse kernel
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cannam |
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Mon, 15 May 2006 15:07:27 +0000 |
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d7116e3183f8 |
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7fe29d8a7eaf |
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line source |
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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 QM DSP Library
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5
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6 Centre for Digital Music, Queen Mary, University of London.
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7 This file copyright 2005-2006 Christian Landone.
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8 All rights reserved.
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9 */
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10
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11 #ifndef PHASEVOCODER_H
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12 #define PHASEVOCODER_H
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13
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14
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15 class PhaseVocoder
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16 {
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17 public:
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18 PhaseVocoder();
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19 virtual ~PhaseVocoder();
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20
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21 void process( unsigned int size, double* src, double* mag, double* theta);
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22 void FFTShift( unsigned int size, double* src);
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23
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24 protected:
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25 void getPhase(unsigned int size, double *theta, double *real, double *imag);
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26 void coreFFT( unsigned int NumSamples, double *RealIn, double* ImagIn, double *RealOut, double *ImagOut);
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27 void getMagnitude( unsigned int size, double* mag, double* real, double* imag);
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28
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29 double* shiftBuffer;
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30 double* imagOut;
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31 double* realOut;
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32
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33 };
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34
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35 #endif
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