Marsyas
0.6.0-alpha
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00001 /* 00002 ** Copyright (C) 1998-2006 George Tzanetakis <gtzan@cs.uvic.ca> 00003 ** 00004 ** This program is free software; you can redistribute it and/or modify 00005 ** it under the terms of the GNU General Public License as published by 00006 ** the Free Software Foundation; either version 2 of the License, or 00007 ** (at your option) any later version. 00008 ** 00009 ** This program is distributed in the hope that it will be useful, 00010 ** but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 ** GNU General Public License for more details. 00013 ** 00014 ** You should have received a copy of the GNU General Public License 00015 ** along with this program; if not, write to the Free Software 00016 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00017 */ 00018 00019 #ifndef MARSYAS_MFCC_H 00020 #define MARSYAS_MFCC_H 00021 00022 #include <marsyas/system/MarSystem.h> 00023 00024 00025 namespace Marsyas 00026 { 00045 class MFCC: public MarSystem 00046 { 00047 private: 00048 00050 void addControls(); 00051 00052 void myUpdate(MarControlPtr sender); 00053 00054 mrs_real lowestFrequency_; 00055 mrs_natural linearFilters_; 00056 mrs_real linearSpacing_; 00057 mrs_natural logFilters_; 00058 mrs_real logSpacing_; 00059 mrs_natural totalFilters_; 00060 00061 mrs_natural fftSize_, pfftSize_; 00062 mrs_natural samplingRate_, psamplingRate_; 00063 00064 00066 mrs_natural cepstralCoefs_; 00068 mrs_natural pcepstralCoefs_; 00070 static const int cepstralCoefs_default = 13; 00071 00073 MarControlPtr ctrl_cepstralCoefs_; 00074 00075 realvec freqs_; 00076 realvec lower_; 00077 realvec center_; 00078 realvec upper_; 00079 realvec triangle_heights_; 00080 00081 realvec fftFreqs_; 00082 realvec mfccFilterWeights_; 00083 realvec mfccDCT_; 00084 realvec earMagnitude_; 00085 realvec fmagnitude_; 00086 00087 // NEIL's filter weight speedup 00088 int* mfcc_offsets_; 00089 00090 bool init_; 00091 00092 public: 00093 00094 MFCC(std::string name); 00095 MFCC(const MFCC& a); 00096 ~MFCC(); 00097 MarSystem* clone() const; 00098 00099 void myProcess(realvec& in, realvec& out); 00100 }; 00101 00102 }//namespace Marsyas 00103 00104 #endif 00105 00106 00107