Marsyas  0.2
/home/gperciva/src/marsyas/src/marsyas/AutoCorrelation.h
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_AUTOCORRELATION_H
00020 #define MARSYAS_AUTOCORRELATION_H
00021 
00022 #include "MarSystem.h"  
00023 #include "fft.h"
00024 
00025 namespace Marsyas
00026 {
00050 class AutoCorrelation: public MarSystem
00051 {
00052 private:
00053   fft *myfft_;
00054   realvec scratch_;
00055   
00056     realvec norm_;
00057     mrs_natural normalize_;
00058     mrs_real octaveCost_;
00059     mrs_real octaveMax_;
00060     mrs_real voicing_;
00061     mrs_natural fftSize_;
00062     mrs_real re_,im_,am_, k_;
00063     mrs_natural lowSamples_;
00064     mrs_natural numSamples_;
00065 
00066     MarControlPtr ctrl_magcompress_;
00067     MarControlPtr   ctrl_normalize_;
00068     MarControlPtr   ctrl_octaveCost_;
00069     MarControlPtr ctrl_voicingThreshold_;
00070     MarControlPtr ctrl_aliasedOutput_;
00071     MarControlPtr ctrl_makePositive_;
00072     MarControlPtr ctrl_setr0to1_;
00073     MarControlPtr ctrl_setr0to0_;
00074     MarControlPtr ctrl_lowCutoff_;
00075     MarControlPtr ctrl_highCutoff_;
00076     
00077 
00078   virtual void addControls();
00079     void myUpdate(MarControlPtr sender);
00080   
00081 public:
00082   AutoCorrelation(std::string name);
00083   ~AutoCorrelation();
00084   AutoCorrelation(const AutoCorrelation& a);
00085   
00086   MarSystem* clone() const;
00087 
00088   void myProcess(realvec& in, realvec& out);
00089 };
00090 
00091 }//namespace Marsyas
00092 
00093 #endif
00094 
00095