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Viewing changes to synti/stklib/FM4Alg6.cpp

  • Committer: Bazaar Package Importer
  • Author(s): Daniel Kobras
  • Date: 2002-04-23 17:28:23 UTC
  • Revision ID: james.westby@ubuntu.com-20020423172823-w8yplzr81a759xa3
Tags: upstream-0.5.2
Import upstream version 0.5.2

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synti/stklib/FM4Alg6.cpp
 
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/******************************************/
 
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/*  Algorithm 6 (TX81Z) Subclass of       */ 
 
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/*  4 Operator FM Synth                   */
 
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/*  by Perry R. Cook, 1995-96             */ 
 
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/*  This connection topology is three     */
 
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/*  Carriers and a common Modulator       */
 
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/*                                        */
 
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/*                /->1 -\                 */
 
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/*             4-|-->2 - +-> Out          */
 
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/*                \->3 -/                 */
 
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/*                                        */
 
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/*  Controls: control1 = vowel            */
 
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/*            control2 = spectral tilt    */
 
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/*            control3 = LFO speed        */
 
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/*            modWheel = LFO amount       */
 
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/*                                        */
 
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/******************************************/
 
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#include "FM4Alg6.h"
 
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FM4Alg6 :: FM4Alg6() : FM4Op()
 
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{
 
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    /*  We still don't make the waves here yet, because    */
 
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    /*  we still don't know what they will be.             */
 
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}  
 
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FM4Alg6 :: ~FM4Alg6()
 
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{
 
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}
 
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MY_FLOAT FM4Alg6 :: tick()
 
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{
 
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    MY_FLOAT temp,temp2;
 
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    temp = gains[3] * adsr[3]->tick() * waves[3]->tick();
 
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    temp2 = vibWave->tick() * modDepth * (MY_FLOAT) 0.1;         /*  Calculate frequency mod  */
 
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    waves[0]->setFreq(baseFreq * ((MY_FLOAT) 1.0 + temp2) * ratios[0]);
 
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    waves[1]->setFreq(baseFreq * ((MY_FLOAT) 1.0 + temp2) * ratios[1]);
 
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    waves[2]->setFreq(baseFreq * ((MY_FLOAT) 1.0 + temp2) * ratios[2]);
 
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    waves[3]->setFreq(baseFreq * ((MY_FLOAT) 1.0 + temp2) * ratios[3]);
 
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    waves[0]->addPhaseOffset(temp * mods[0]);
 
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    waves[1]->addPhaseOffset(temp * mods[1]);
 
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    waves[2]->addPhaseOffset(temp * mods[2]);
 
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    waves[3]->addPhaseOffset(twozero->lastOut());
 
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    twozero->tick(temp);
 
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    temp =  gains[0] * tilt[0] * adsr[0]->tick() * waves[0]->tick();
 
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    temp += gains[1] * tilt[1] * adsr[1]->tick() * waves[1]->tick();
 
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    temp += gains[2] * tilt[2] * adsr[2]->tick() * waves[2]->tick();
 
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    return temp * (MY_FLOAT) 0.33;
 
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}
 
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void FM4Alg6 :: controlChange(int number, MY_FLOAT value)
 
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{
 
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}