Loudia: PeakCOG.h Source File

00001 /*                                                         
00002 ** Copyright (C) 2008, 2009 Ricard Marxer <email@ricardmarxer.com>
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 PEAKCOG_H
00020 #define PEAKCOG_H
00021 
00022 #include "Typedefs.h"
00023 #include "Debug.h"
00024 
00025 class PeakCOG {
00026 protected:
00027   // Internal parameters
00028   int _fftLength;
00029   int _bandwidth;
00030   
00031   // Internal variables
00032   MatrixXR _spectrumAbs2;
00033   MatrixXR _spectrumArg;
00034   MatrixXR _spectrumArgDeriv;
00035   
00036 public:
00037   PeakCOG(int fftLength, int bandwidth = 6);
00038 
00039   ~PeakCOG();
00040 
00041   void setup();
00042 
00043   void process(const MatrixXC& fft, const MatrixXR& peakPos, MatrixXR* peakCog);
00044 
00045   void reset();
00046 
00047 };
00048 
00049 #endif  /* PEAKCOG_H */