/** * @author Bojan MARKOVIC * @author Edouard DUPIN * @copyright 2006, ChunkWare Music Software, OPEN-SOURCE * @license BSD-1 (see license file) * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #ifndef __AUDIO_ALGO_CHUNKWARE_COMPRESSOR_H__ #define __AUDIO_ALGO_CHUNKWARE_COMPRESSOR_H__ #include "header.h" #include "AttRelEnvelope.h" #include "Gain.h" namespace audio { namespace algo { namespace chunkware { class Compresssor : public AttRelEnvelope { public: Compresssor(); virtual ~Compresssor() {} // parameters virtual void setThresh(double dB); virtual void setRatio(double dB); virtual double getThresh() const { return threshdB_; } virtual double getRatio() const { return ratio_; } // runtime // call before runtime (in resume()) virtual void initRuntime(); // compressor runtime process void process(double &in1, double &in2); // with stereo-linked key in void process(double &in1, double &in2, double keyLinked); private: // transfer function double threshdB_;//!< threshold (dB) double ratio_; //!< ratio (compression: < 1 ; expansion: > 1) // runtime variables double envdB_; //!< over-threshold envelope (dB) }; } } } #endif