Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/marsystems/Spectrum2ACMChroma.h
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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_SPECTRUM2ACMCHROMA_H
00020 #define MARSYAS_SPECTRUM2ACMCHROMA_H
00021 
00022 #include <marsyas/system/MarSystem.h>
00023 #include <vector>
00024 
00025 namespace Marsyas
00026 {
00057 class marsyas_EXPORT Spectrum2ACMChroma: public MarSystem
00058 {
00059 public:
00060   Spectrum2ACMChroma(mrs_string inName);
00061   Spectrum2ACMChroma(const Spectrum2ACMChroma& inToCopy);
00062 
00063   ~Spectrum2ACMChroma();
00064 
00065   MarSystem* clone() const;
00066 
00067   void addControls();
00068   void myUpdate(MarControlPtr inSender);
00069   void myProcess(realvec& inSpectrum, realvec& outChroma);
00070 
00071 private:
00072   MarSystem* Spectrum2ACMChromaNet_;
00073 
00074   // Pointers to MarControllers: contain MOST RECENT values
00075   MarControlPtr ctrl_NrOfHarmonics_;
00076   MarControlPtr ctrl_F0Weight_;
00077   MarControlPtr ctrl_LowestF0_;
00078 
00079   // Member variables: values SINCE LAST UPDATE
00080   mrs_natural NrOfHarmonics_;       // Number of harmonics in harmonic sum
00081   mrs_real F0Weight_;               // Relative weight of F0 in pitch evidence
00082   mrs_real LowestF0_;               // Lowest candidate F0 (in Hz)
00083 
00084   // Static member variables
00085   static const mrs_natural MedianLength_ = 80;  // Length of median filter (in bins)
00086   static const mrs_natural NotesPerOctave_ = 12;    // Number of notes per octave
00087 
00088 //          static const mrs_real RaiseFactor_;             // Factor to raise background spectrum with
00089 //          static const mrs_real Hysteresis_;              // Hysteresis in peak detection function
00090 //          static const mrs_real Tolerance_;               // Relative tolerance for harmonic analysis
00091 //          static const mrs_real Attenuation_;             // Attenuation of higher order harmonics
00092 //          static const mrs_real PowerOfAmplitude_;        // Power of amplitude (0.5 for loudness)
00093 //          static const mrs_real Diapason_;                // Frequency of middle A (NN69) (in Hz)
00094 };
00095 
00096 }   // End namespace
00097 
00098 #endif