Marsyas
0.6.0-alpha
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00001 /* 00002 ** Copyright (C) 1998-2010 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_SimulMaskingFft_H 00020 #define MARSYAS_SimulMaskingFft_H 00021 00022 #include <marsyas/system/MarSystem.h> 00023 00024 namespace Marsyas 00025 { 00042 class SimulMaskingFft: public MarSystem 00043 { 00044 private: 00045 //Add specific controls needed by this MarSystem. 00046 void addControls(); 00047 MarControlPtr ctrl_SimulMaskingFft_; 00048 void myUpdate(MarControlPtr sender); 00049 00050 struct FrequencyBands_t 00051 { 00052 mrs_real fLowFreqBound, 00053 fUpFreqBound, 00054 fMidFreq, 00055 fLowBarkBound, 00056 fUpBarkBound, 00057 fMidBark; 00058 }; 00059 00060 void GetBandLevels (FrequencyBands_t *pFrequencyValues, mrs_realvec &bandLevels, mrs_bool bDezibel); 00061 void CalcSpreading (mrs_realvec &bandLevels, mrs_realvec &result); 00062 void ComputeTables (); 00063 void ComputeDifference (mrs_realvec &out, mrs_realvec &in, mrs_natural t); 00064 00065 mrs_real normFactor_, 00066 audiosrate_, 00067 barkRes_; 00068 mrs_natural numBands_; 00069 mrs_realvec processBuff_, 00070 barkSpec_, 00071 excPattern_, 00072 helpBuff_, 00073 outerEar_, 00074 maskingThresh_, 00075 intNoise_, 00076 slopeSpread_, 00077 normSpread_; 00078 FrequencyBands_t *freqBounds_; 00079 public: 00080 SimulMaskingFft(std::string name); 00081 SimulMaskingFft(const SimulMaskingFft& a); 00082 ~SimulMaskingFft(); 00083 MarSystem* clone() const; 00084 00085 void myProcess(realvec& in, realvec& out); 00086 }; 00087 00088 }//namespace Marsyas 00089 00090 #endif