Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/marsystems/TriangularFilterBank.h
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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