Mercurial > hg > qm-dsp

annotate dsp/chromagram/Chromagram.h @ 241:a98dd8ec96f8

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
* 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 b7f01ab7045e
children 8bb764969d50
rev   line source
c@225 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
c@225 2
c@225 3 /*
c@225 4 QM DSP Library
c@225 5
c@225 6 Centre for Digital Music, Queen Mary, University of London.
c@225 7 This file copyright 2005-2006 Christian Landone.
c@225 8 All rights reserved.
c@225 9 */
c@225 10
c@225 11 #ifndef CHROMAGRAM_H
c@225 12 #define CHROMAGRAM_H
c@225 13
c@225 14 #include "dsp/transforms/FFT.h"
c@225 15 #include "ConstantQ.h"
c@225 16
c@225 17 struct ChromaConfig{
c@225 18 unsigned int FS;
c@225 19 double min;
c@225 20 double max;
c@225 21 unsigned int BPO;
c@225 22 double CQThresh;
c@225 23 bool isNormalised;
c@225 24 };
c@225 25
c@225 26 class Chromagram
c@225 27 {
c@225 28
c@225 29 public:
c@225 30 Chromagram( ChromaConfig Config );
c@225 31 ~Chromagram();
c@225 32
c@228 33 double* process( double *data ); // time domain
c@228 34 double* process( double *real, double *imag ); // frequency domain
c@225 35 void unityNormalise( double* src );
c@225 36
c@225 37 // Complex arithmetic
c@225 38 double kabs( double real, double imag );
c@225 39
c@225 40 // Results
c@225 41 unsigned int getK() { return m_uK;}
c@225 42 unsigned int getFrameSize() { return m_frameSize; }
c@225 43 unsigned int getHopSize() { return m_hopSize; }
c@225 44
c@225 45 private:
c@225 46 int initialise( ChromaConfig Config );
c@225 47 int deInitialise();
c@225 48
c@225 49 double* m_chromadata;
c@225 50 double m_FMin;
c@225 51 double m_FMax;
c@225 52 unsigned int m_BPO;
c@225 53 unsigned int m_uK;
c@225 54
c@225 55 bool isNormalised;
c@225 56
c@225 57 unsigned int m_frameSize;
c@225 58 unsigned int m_hopSize;
c@225 59
c@228 60 FFT* m_FFT;
c@225 61 ConstantQ* m_ConstantQ;
c@225 62
c@225 63 double* m_FFTRe;
c@225 64 double* m_FFTIm;
c@225 65 double* m_CQRe;
c@225 66 double* m_CQIm;
c@225 67
c@225 68 };
c@225 69
c@225 70 #endif