annotate dsp/phasevocoder/PhaseVocoder.h @ 289:befe5aa6b450
* Refactor FFT a little bit so as to separate construction and processing
rather than have a single static method -- will make it easier to use a
different implementation
* pull in KissFFT implementation (not hooked up yet)
| author |
Chris Cannam <c.cannam@qmul.ac.uk> |
| date |
Wed, 13 May 2009 09:19:12 +0000 |
| parents |
9c403afdd9e9 |
| children |
e5907ae6de17 |
| rev |
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 class FFTReal;
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15
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16 class PhaseVocoder
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17 {
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18 public:
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19 PhaseVocoder( unsigned int size );
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20 virtual ~PhaseVocoder();
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21
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22 void process( double* src, double* mag, double* theta);
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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 void FFTShift( unsigned int size, double* src);
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29
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30 unsigned int m_n;
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31 FFTReal *m_fft;
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32 double *m_imagOut;
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33 double *m_realOut;
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34
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35 };
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36
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37 #endif
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