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_PEAKER_H 00020 #define MARSYAS_PEAKER_H 00021 00022 #include <marsyas/system/MarSystem.h> 00023 00024 namespace Marsyas 00025 { 00044 // - \b mrs_real/peakGain [w] : TODO - mlagrange? [!] 00045 00046 class Peaker: public MarSystem 00047 { 00048 private: 00049 mrs_real rms_, 00050 max_, 00051 lpCoeff_, 00052 currThresh_; 00053 00054 mrs_realvec lpThresh_; 00055 00056 void addControls(); 00057 void myUpdate(MarControlPtr sender); 00058 00059 mrs_bool doThresholding (mrs_real input, mrs_real peakStrengthRelRms, mrs_real peakStrengthRelMax, mrs_real peakStrengthRelThresh, mrs_real peakStrengthAbs); 00060 void compLpThresh (const mrs_realvec input, mrs_realvec &output); 00061 00062 mrs_natural twice_; 00063 mrs_natural half_; 00064 mrs_natural triple_; 00065 mrs_natural third_; 00066 00067 public: 00068 Peaker(std::string name); 00069 ~Peaker(); 00070 MarSystem* clone() const; 00071 00072 void myProcess(realvec& in, realvec& out); 00073 }; 00074 00075 }//namespace Marsyas 00076 00077 #endif 00078 00079