|
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@309
|
7 This file 2005-2006 Christian Landone.
|
|
c@309
|
8
|
|
c@309
|
9 This program is free software; you can redistribute it and/or
|
|
c@309
|
10 modify it under the terms of the GNU General Public License as
|
|
c@309
|
11 published by the Free Software Foundation; either version 2 of the
|
|
c@309
|
12 License, or (at your option) any later version. See the file
|
|
c@309
|
13 COPYING included with this distribution for more information.
|
|
c@225
|
14 */
|
|
c@225
|
15
|
|
c@225
|
16 #ifndef TEMPOTRACK_H
|
|
c@225
|
17 #define TEMPOTRACK_H
|
|
c@225
|
18
|
|
c@225
|
19
|
|
c@225
|
20 #include <stdio.h>
|
|
c@225
|
21 #include <vector>
|
|
c@225
|
22
|
|
c@225
|
23 #include "dsp/signalconditioning/DFProcess.h"
|
|
c@241
|
24 #include "maths/Correlation.h"
|
|
c@225
|
25 #include "dsp/signalconditioning/Framer.h"
|
|
c@225
|
26
|
|
c@225
|
27
|
|
c@225
|
28
|
|
c@225
|
29 using std::vector;
|
|
c@225
|
30
|
|
c@225
|
31 struct WinThresh
|
|
c@225
|
32 {
|
|
c@225
|
33 unsigned int pre;
|
|
c@225
|
34 unsigned int post;
|
|
c@225
|
35 };
|
|
c@225
|
36
|
|
c@225
|
37 struct TTParams
|
|
c@225
|
38 {
|
|
c@225
|
39 unsigned int winLength; //Analysis window length
|
|
c@225
|
40 unsigned int lagLength; //Lag & Stride size
|
|
c@225
|
41 unsigned int alpha; //alpha-norm parameter
|
|
c@225
|
42 unsigned int LPOrd; // low-pass Filter order
|
|
c@225
|
43 double* LPACoeffs; //low pass Filter den coefficients
|
|
c@225
|
44 double* LPBCoeffs; //low pass Filter num coefficients
|
|
c@225
|
45 WinThresh WinT;//window size in frames for adaptive thresholding [pre post]:
|
|
c@225
|
46 };
|
|
c@225
|
47
|
|
c@225
|
48
|
|
c@225
|
49 class TempoTrack
|
|
c@225
|
50 {
|
|
c@225
|
51 public:
|
|
c@225
|
52 TempoTrack( TTParams Params );
|
|
c@225
|
53 virtual ~TempoTrack();
|
|
c@225
|
54
|
|
c@231
|
55 vector<int> process( vector <double> DF, vector <double> *tempoReturn = 0);
|
|
c@225
|
56
|
|
c@225
|
57
|
|
c@225
|
58 private:
|
|
c@225
|
59 void initialise( TTParams Params );
|
|
c@225
|
60 void deInitialise();
|
|
c@225
|
61
|
|
c@225
|
62 int beatPredict( unsigned int FSP, double alignment, double period, unsigned int step);
|
|
c@225
|
63 int phaseMM( double* DF, double* weighting, unsigned int winLength, double period );
|
|
c@225
|
64 void createPhaseExtractor( double* Filter, unsigned int winLength, double period, unsigned int fsp, unsigned int lastBeat );
|
|
c@225
|
65 int findMeter( double* ACF, unsigned int len, double period );
|
|
c@225
|
66 void constDetect( double* periodP, int currentIdx, int* flag );
|
|
c@225
|
67 void stepDetect( double* periodP, double* periodG, int currentIdx, int* flag );
|
|
c@225
|
68 void createCombFilter( double* Filter, unsigned int winLength, unsigned int TSig, double beatLag );
|
|
c@225
|
69 double tempoMM( double* ACF, double* weight, int sig );
|
|
c@225
|
70
|
|
c@225
|
71 unsigned int m_dataLength;
|
|
c@225
|
72 unsigned int m_winLength;
|
|
c@225
|
73 unsigned int m_lagLength;
|
|
c@225
|
74
|
|
c@225
|
75 double m_rayparam;
|
|
c@225
|
76 double m_sigma;
|
|
c@225
|
77 double m_DFWVNnorm;
|
|
c@225
|
78
|
|
c@225
|
79 vector<int> m_beats; // Vector of detected beats
|
|
c@225
|
80
|
|
c@231
|
81 double m_lockedTempo;
|
|
c@231
|
82
|
|
c@225
|
83 double* m_tempoScratch;
|
|
c@264
|
84 double* m_smoothRCF; // Smoothed Output of Comb Filterbank (m_tempoScratch)
|
|
c@225
|
85
|
|
c@225
|
86 // Processing Buffers
|
|
c@225
|
87 double* m_rawDFFrame; // Original Detection Function Analysis Frame
|
|
c@225
|
88 double* m_smoothDFFrame; // Smoothed Detection Function Analysis Frame
|
|
c@225
|
89 double* m_frameACF; // AutoCorrelation of Smoothed Detection Function
|
|
c@225
|
90
|
|
c@225
|
91 //Low Pass Coefficients for DF Smoothing
|
|
c@225
|
92 double* m_ACoeffs;
|
|
c@225
|
93 double* m_BCoeffs;
|
|
c@225
|
94
|
|
c@225
|
95 // Objetcs/operators declaration
|
|
c@225
|
96 Framer m_DFFramer;
|
|
c@225
|
97 DFProcess* m_DFConditioning;
|
|
c@225
|
98 Correlation m_correlator;
|
|
c@225
|
99 // Config structure for DFProcess
|
|
c@225
|
100 DFProcConfig m_DFPParams;
|
|
c@264
|
101
|
|
c@264
|
102 // also want to smooth m_tempoScratch
|
|
c@264
|
103 DFProcess* m_RCFConditioning;
|
|
c@264
|
104 // Config structure for RCFProcess
|
|
c@264
|
105 DFProcConfig m_RCFPParams;
|
|
c@264
|
106
|
|
c@264
|
107
|
|
c@264
|
108
|
|
c@225
|
109 };
|
|
c@225
|
110
|
|
c@225
|
111 #endif
|
