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view dsp/phasevocoder/PhaseVocoder.h @ 241:a98dd8ec96f8

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* Move dsp/maths to maths ; bring PCA and HMM across from Soundbite
author Chris Cannam <c.cannam@qmul.ac.uk>
date Wed, 09 Jan 2008 10:31:29 +0000
parents 49844bc8a895
children 7fe29d8a7eaf
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    QM DSP Library

    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2005-2006 Christian Landone.
    All rights reserved.
*/

#ifndef PHASEVOCODER_H
#define PHASEVOCODER_H


class PhaseVocoder  
{
public:
    PhaseVocoder();
    virtual ~PhaseVocoder();

    void process( unsigned int size, double* src, double* mag, double* theta);
    void FFTShift( unsigned int size, double* src);

protected:
    void getPhase(unsigned int size, double *theta, double *real, double *imag);
    void coreFFT( unsigned int NumSamples, double *RealIn, double* ImagIn, double *RealOut, double *ImagOut);
    void getMagnitude( unsigned int size, double* mag, double* real, double* imag);

    double* shiftBuffer;
    double* imagOut;
    double* realOut;

};

#endif