Marsyas
0.6.0-alpha
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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_Biquad_H 00020 #define MARSYAS_Biquad_H 00021 00022 #include <marsyas/system/MarSystem.h> 00023 #include "Filter.h" 00024 00025 namespace Marsyas 00026 { 00038 class Biquad: public MarSystem 00039 { 00040 private: 00041 mrs_real q_; 00042 mrs_real freq_; 00043 00044 mrs_real fs_; 00045 mrs_real alpha_; 00046 mrs_real w0_; 00047 00048 realvec b; 00049 realvec a; 00050 00051 Filter* filter; 00052 00053 void addControls(); 00054 void myUpdate(MarControlPtr sender); 00055 00056 public: 00057 Biquad(std::string name); 00058 Biquad(const Biquad& orig); 00059 ~Biquad(); 00060 00061 MarSystem* clone() const; 00062 00063 void myProcess(realvec& in, realvec& out); 00064 }; 00065 00066 }//namespace Marsyas 00067 00068 00069 #endif 00070