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 #include <cmath> 00020 00021 #include "Compressor.h" 00022 #include "../common_source.h" 00023 00024 00025 using std::ostringstream; 00026 using namespace Marsyas; 00027 00028 Compressor::Compressor(mrs_string name):MarSystem("Compressor", name) 00029 { 00030 addControls(); 00031 } 00032 00033 Compressor::Compressor(const Compressor& a) : MarSystem(a) 00034 { 00035 } 00036 00037 00038 Compressor::~Compressor() 00039 { 00040 } 00041 00042 MarSystem* 00043 Compressor::clone() const 00044 { 00045 return new Compressor(*this); 00046 } 00047 00048 void 00049 Compressor::addControls() 00050 { 00051 00052 } 00053 00054 void 00055 Compressor::myUpdate(MarControlPtr sender) 00056 { 00057 MRSDIAG("Compressor.cpp - Compressor:myUpdate"); 00058 00059 MarSystem::myUpdate(sender); 00060 } 00061 00062 void 00063 Compressor::myProcess(realvec& in, realvec& out) 00064 { 00065 mrs_natural o,t; 00066 for (o=0; o < inObservations_; o++) 00067 for (t = 0; t < inSamples_; t++) { 00068 if(in(o,t) > 0.0001) 00069 out(o,t) = 5.213 * log(1 + 10 * sqrt(in(o,t)))/12.5; 00070 else 00071 out(o,t) = 5.213 * log(1.1)/12.5; 00072 00073 //cout << "Compressor:" << in(o,t) << "\t-->\t" << out(o,t) << endl; 00074 } 00075 }