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102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
/*
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* Simple Compressor (source)
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*
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* File : SimpleComp.cpp
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* Library : SimpleSource
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* Version : 1.12
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* Implements : SimpleComp, SimpleCompRms
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*
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* © 2006, ChunkWare Music Software, OPEN-SOURCE
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include "SimpleComp.h"
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namespace chunkware_simple
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{
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//-------------------------------------------------------------
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// simple compressor
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//-------------------------------------------------------------
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SimpleComp::SimpleComp()
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: AttRelEnvelope(10.0, 100.0)
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, threshdB_(0.0)
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, ratio_(1.0)
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, envdB_(DC_OFFSET)
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, makeUpGain_(1.0)
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{
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}
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//-------------------------------------------------------------
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void SimpleComp::setThresh(double dB)
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{
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threshdB_ = dB;
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}
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//-------------------------------------------------------------
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void SimpleComp::setRatio(double ratio)
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{
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assert(ratio > 0.0);
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ratio_ = ratio;
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}
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//-------------------------------------------------------------
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void SimpleComp::setMakeUpGain(double gain)
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{
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makeUpGain_ = gain;
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}
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//-------------------------------------------------------------
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void SimpleComp::initRuntime(void)
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{
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envdB_ = DC_OFFSET;
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}
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//-------------------------------------------------------------
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// simple compressor with RMS detection
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//-------------------------------------------------------------
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SimpleCompRms::SimpleCompRms()
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: ave_(5.0)
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, aveOfSqrs_(DC_OFFSET)
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{
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}
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//-------------------------------------------------------------
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void SimpleCompRms::setSampleRate(double sampleRate)
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{
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SimpleComp::setSampleRate(sampleRate);
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ave_.setSampleRate(sampleRate);
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}
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//-------------------------------------------------------------
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void SimpleCompRms::setWindow(double ms)
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{
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ave_.setTc(ms);
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}
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//-------------------------------------------------------------
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void SimpleCompRms::initRuntime(void)
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{
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SimpleComp::initRuntime();
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aveOfSqrs_ = DC_OFFSET;
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}
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} // end namespace chunkware_simple
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