Marsyas
0.6.0-alpha
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00001 /* 00002 ** Copyright (C) 1998-2012 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_TRIANGULAR_FILTERBANK_H 00020 #define MARSYAS_TRIANGULAR_FILTERBANK_H 00021 00022 #include <marsyas/system/MarSystem.h> 00023 00024 00025 namespace Marsyas 00026 { 00042 class TriangularFilterBank: public MarSystem 00043 { 00044 private: 00045 00047 void addControls(); 00048 00049 void myUpdate(MarControlPtr sender); 00050 00051 mrs_real lowestFrequency_; 00052 mrs_natural linearFilters_; 00053 mrs_real linearSpacing_; 00054 mrs_natural logFilters_; 00055 mrs_real logSpacing_; 00056 mrs_natural totalFilters_; 00057 00058 mrs_natural fftSize_, pfftSize_; 00059 mrs_natural samplingRate_, psamplingRate_; 00060 00061 00063 mrs_natural cepstralCoefs_; 00065 mrs_natural pcepstralCoefs_; 00067 static const int cepstralCoefs_default = 13; 00068 00070 MarControlPtr ctrl_cepstralCoefs_; 00071 00072 realvec freqs_; 00073 realvec lower_; 00074 realvec center_; 00075 realvec upper_; 00076 realvec triangle_heights_; 00077 00078 realvec fftFreqs_; 00079 realvec mfccFilterWeights_; 00080 realvec mfccDCT_; 00081 realvec earMagnitude_; 00082 realvec fmagnitude_; 00083 00084 // NEIL's filter weight speedup 00085 int* mfcc_offsets_; 00086 00087 bool init_; 00088 00089 public: 00090 00091 TriangularFilterBank(std::string name); 00092 TriangularFilterBank(const TriangularFilterBank& a); 00093 ~TriangularFilterBank(); 00094 MarSystem* clone() const; 00095 00096 void myProcess(realvec& in, realvec& out); 00097 }; 00098 00099 }//namespace Marsyas 00100 00101 #endif 00102 00103 00104 00105 00106