419 lines
12 KiB
C++
419 lines
12 KiB
C++
#ifndef __PAF_SYNTH_AUDIO_APP_HPP__
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#define __PAF_SYNTH_AUDIO_APP_HPP__
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#include "src/memllib/audio/AudioAppBase.hpp" // Added missing include
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#include "src/memllib/synth/maximilian.h" // Added missing include for maxiSettings, maxiOsc, maxiTrigger, maxiDelayline, maxiEnvGen, maxiLine
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#include <cstddef>
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#include <cstdint>
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#include <memory> // Added for std::shared_ptr
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#include "src/memllib/synth/maxiPAF.hpp"
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#include "src/memllib/interface/InterfaceBase.hpp" // Added missing include
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// #define ARPEGGIATOR
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class ADSRLite {
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public:
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enum envStage{WAITTOTRIG, ATTACK, DECAY, SUSTAIN, RELEASE};
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void setup(float attackTimeMs, float decayTimeMs, float newSustainLevel, float releaseTimeMs) {
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attackIncFull = 1.f/((attackTimeMs / 1000.f) * kSampleRate);
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attackInc = attackIncFull;
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decayInc = 1.f/((decayTimeMs / 1000.f) * kSampleRate);
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sustainLevel = newSustainLevel;
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decayInc *= (1.f - sustainLevel);
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releaseMs = releaseTimeMs;
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}
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float play() {
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switch(stage) {
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case envStage::WAITTOTRIG:
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{
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envelopeValue = 0.f;
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break;
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}
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case envStage::ATTACK:
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{
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envelopeValue += attackInc;
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if (envelopeValue >= 1.f) {
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stage = envStage::DECAY;
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Serial.printf("decay %f\n", envelopeValue);
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}
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break;
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}
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case envStage::DECAY:
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{
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envelopeValue -= decayInc;
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if (envelopeValue<=sustainLevel) {
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stage = envStage::SUSTAIN;
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Serial.printf("sus %f\n", envelopeValue);
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}
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break;
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}
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case envStage::SUSTAIN:
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{
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// envelopeValue = sustainLevel;
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break;
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}
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case envStage::RELEASE:
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{
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envelopeValue -= relInc;
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if (envelopeValue <= 0.f) {
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stage = envStage::WAITTOTRIG;
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Serial.println("wait");
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envelopeValue=0.f;
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}
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break;
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}
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}
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return envelopeValue * velocity;
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}
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void reset() {
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stage = envStage::WAITTOTRIG;
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envelopeValue=0;
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}
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void trigger(float vel) {
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stage = envStage::ATTACK;
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attackInc = attackIncFull * (1.f - envelopeValue);
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velocity = vel;
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}
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void release() {
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relInc = 1.f/((releaseMs / 1000.f) * kSampleRate);
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relInc *= envelopeValue;
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stage = envStage::RELEASE;
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}
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private:
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envStage stage = envStage::WAITTOTRIG;
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float attackInc=0, attackIncFull=0, decayInc=0, sustainLevel=0,relInc=0, releaseMs;
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float envelopeValue=0;
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float velocity = 1.f;
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};
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template<size_t NPARAMS=33>
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class PAFSynthAudioApp : public AudioAppBase<NPARAMS>
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{
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public:
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static constexpr size_t kN_Params = NPARAMS;
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static constexpr size_t nFREQs = 17;
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static constexpr float frequencies[nFREQs] = {100, 200, 400,800, 400, 800, 100,1600,100,400,100,50,1600,200,100,800,400};
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PAFSynthAudioApp() : AudioAppBase<NPARAMS>() {
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};
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bool __force_inline euclidean(float phase, const size_t n, const size_t k, const size_t offset, const float pulseWidth)
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{
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// Euclidean function
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const float fi = phase * n;
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int i = static_cast<int>(fi);
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const float rem = fi - i;
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if (i == n)
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{
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i--;
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}
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const int idx = ((i + n - offset) * k) % n;
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return (idx < k && rem < pulseWidth) ? 1 : 0;
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}
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stereosample_t __force_inline Process(const stereosample_t x) override
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{
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float x1[1];
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// const float trig = pulse.square(1);
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paf0.play(x1, 1, baseFreq, baseFreq + (paf0_cf * baseFreq), paf0_bw * baseFreq, paf0_vib, paf0_vfr, paf0_shift, 0);
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float p0 = *x1;
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const float freq1 = baseFreq * detune;
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paf1.play(x1, 1, freq1, freq1 + (paf1_cf * freq1), paf1_bw * freq1, paf1_vib, paf1_vfr, paf1_shift, 1);
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const float p1 = *x1;
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const float freq2 = freq1 * detune;
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paf2.play(x1, 1, freq2, freq2 + (paf2_cf * freq2), paf2_bw * freq2, paf2_vib, paf2_vfr, paf2_shift, 1);
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const float p2 = *x1;
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const float freq3 = freq2 * detune;
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paf3.play(x1, 1, freq3, freq3 + (paf3_cf * freq3), paf3_bw * freq3, paf3_vib, paf3_vfr, paf3_shift, 1);
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const float p3 = *x1;
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auto shapedSine = [](float phasor, float gain, float asym) -> float {
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// This function shapes the sine wave to create a foldback effect
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float x = sinf(phasor * TWOPI);
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x = sinf(((x * TWOPI) * gain) + asym);
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return x;
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};
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float y = p0; //+ p1 + p2 + p3;
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// float rm = p0 * p1 * p2 * p3;
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// y = y + (rm * rmGain);
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y = y + (shapedSine(y, sineShapeGain, sineShapeGain) * sineShapeMix);
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#ifdef ARPEGGIATOR
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const float ph = phasorOsc.phasor(1);
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const bool euclidNewNote = euclidean(ph, 12, euclidN, 0, 0.1f);
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if(zxdetect.onZX(euclidNewNote)) {
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envamp=0.8f;
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freqIndex++;
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if(freqIndex >= nFREQs) {
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freqIndex = 0;
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}
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baseFreq = frequencies[freqIndex];
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}else{
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// constexpr float envdec = 0.2f/9000.f;
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envamp -= envdec;
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if (envamp < 0.f) {
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envamp = 0.f;
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}
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}
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#else
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if(newNote) {
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newNote = false;
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envamp=0.8f;
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}else{
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// constexpr float envdec = 0.2f/9000.f;
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envamp -= envdec;
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if (envamp < 0.f) {
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envamp = 0.f;
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}
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}
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#endif
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float envval = env.play();
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y = y * envval;
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// y = y * envamp* envamp;
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#ifndef ARPEGGIATOR
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y *= noteVel;
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#endif
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float d1 = (dl1.play(y, 100, 0.8f) * dl1mix);
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// float d2 = (dl2.play(y, 15000, 0.8f) * dl2mix);
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y = y + d1;// + d2;
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stereosample_t ret { y, y };
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frame++;
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return ret;
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}
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void Setup(float sample_rate, std::shared_ptr<InterfaceBase> interface) override
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{
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AudioAppBase<NPARAMS>::Setup(sample_rate, interface);
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maxiSettings::sampleRate = sample_rate;
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paf0.init();
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paf0.setsr(maxiSettings::getSampleRate(), 1);
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// paf0.freq(100, 0);
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// // paf0.amp(1,0);
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// paf0.bw(200,0);
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// paf0.cf(210,0);
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// paf0.vfr(5,0);
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// paf0.vib(0.1,0);
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// paf0.shift(10,0);
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paf1.init();
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paf1.setsr(maxiSettings::getSampleRate(), 1);
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// paf1.freq(150, 0);
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// // paf1.amp(1,0);
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// paf1.bw(200,0);
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// paf1.cf(210,0);
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// paf1.vfr(5,0);
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// paf1.vib(0.1,0);
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// paf1.shift(10,0);
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paf2.init();
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paf2.setsr(maxiSettings::getSampleRate(), 1);
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paf3.init();
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paf3.setsr(maxiSettings::getSampleRate(), 1);
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// env.setupAR(10,100);
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arpFreq = frequencies[0];
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// line.prepare(1.f,0.f,100.f,false);
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// line.triggerEnable(true);
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envamp=1.f;
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env.setup(500,500,0.8,1000);
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queue_init(&qMIDINoteOn, sizeof(uint8_t)*2, 1);
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queue_init(&qMIDINoteOff, sizeof(uint8_t)*2, 1);
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}
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inline float mtof(uint8_t note) {
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// Convert MIDI note to frequency
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return 440.0f * exp2f((note - 69) / 12.0f);
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}
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void loop() override {
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uint8_t midimsg[2];
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if (firstParamsReceived && queue_try_remove(&qMIDINoteOn, &midimsg)) {
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// Serial.printf("PAFSynthAudioApp::ProcessParams - Received MIDI Note On: %d, Velocity: %d\n", midimsg[0], midimsg[1]);
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baseFreq = mtof(midimsg[0]);
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noteVel = midimsg[1] / 127.0f; // Normalize velocity to [0, 1]
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noteVel = noteVel * noteVel; // Square the velocity for more pronounced effect
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newNote = true;
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env.trigger(noteVel);
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}
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if (firstParamsReceived && queue_try_remove(&qMIDINoteOff, &midimsg)) {
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// Serial.printf("PAFSynthAudioApp::ProcessParams - Received MIDI Note On: %d, Velocity: %d\n", midimsg[0], midimsg[1]);
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env.release();
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Serial.println("release");
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}
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AudioAppBase<NPARAMS>::loop();
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}
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void ProcessParams(const std::array<float, NPARAMS>& params)
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{
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firstParamsReceived = true;
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// // Map parameters to the synth
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// synth_.mapParameters(params);
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// //Serial.print("Params processed.");
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// paf0_freq = 50.f + (params[0] * params[0] * 1000.f);
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// paf1_freq = 50.f + (params[1] * params[1] * 1000.f);
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// paf0_cf = arpFreq + (params[2] * params[2] * arpFreq * 1.f);
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// paf1_cf = arpFreq + (params[3] * params[3] * arpFreq * 1.f);
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// paf2_cf = arpFreq + (params[4] * params[4] * arpFreq * 1.f);
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paf0_cf = (params[2] * params[2] * 0.1f);
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paf1_cf = (params[3] * params[3] * 1.f);
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paf2_cf = (params[4] * params[4] * 1.f);
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paf3_cf = (params[21] * params[21] * 1.f);
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// paf0_bw = 5.f + (params[5] * arpFreq * 0.5f);
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// paf1_bw = 5.f + (params[6] * arpFreq * 0.5f);
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// paf2_bw = 5.f + (params[7] * arpFreq * 0.5f);
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paf0_bw = 0.1f + (params[5] * 0.2f);
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paf1_bw = 0.1f + (params[6] * 2.f);
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paf2_bw = 0.1f + (params[7] * 2.f);
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paf3_bw = 0.1f + (params[22] * 2.f);
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paf0_vib = (params[8] * params[8] * 0.1f);
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paf1_vib = (params[9] * params[9] * 0.99f);
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paf2_vib = (params[10] * params[10] * 0.99f);
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paf3_vib = (params[23] * params[23] * 0.99f);
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paf0_vfr = (params[11] * params[11]* 0.1f);
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paf1_vfr = (params[12] * params[12] * 10.f);
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paf2_vfr = (params[13] * params[13] * 10.f);
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paf3_vfr = (params[24] * params[24] * 10.f);
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paf0_shift = (params[14] * 10.f);
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paf1_shift = (params[15] * 1000.f);
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paf2_shift = (params[16] * 1000.f);
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paf3_shift = (params[25] * 1000.f);
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dl1mix = params[17] * params[17] * 0.4f;
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// dl2mix = params[18] * params[18] * 0.4f;
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detune = 1.0f + (params[18] * 0.1);
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euclidN = static_cast<size_t>(2 + (params[19] * 5));
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// envdec=((params[20] * 1.f) + 0.01f)/9000.f; // Decay rate for the envelope
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env.setup(params[30] * 200.f,params[20] * params[20] * 500.f, params[31] * 0.5f, params[32] * 500.f );
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sineShapeGain = params[26] * params[26];
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sineShapeASym = params[27] * params[27] * 0.1f;
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sineShapeMix = params[28];
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rmGain = params[29] * params[29];
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// sineShapeMixInv = 1.f-sineShapeMix;
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// Serial.printf("%f %f %f %f %f\n", paf0_cf, paf0_bw, paf0_vib, paf0_vfr, paf0_shift);
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}
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queue_t qMIDINoteOn, qMIDINoteOff;
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protected:
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maxiPAFOperator paf0;
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maxiPAFOperator paf1;
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maxiPAFOperator paf2;
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maxiPAFOperator paf3;
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maxiDelayline<5000> dl1;
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maxiDelayline<15100> dl2;
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maxiOsc pulse;
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// maxiEnvGen env;
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ADSRLite env;
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float frame=0;
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float paf0_freq = 100;
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float paf1_freq = 100;
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float paf2_freq = 50;
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float paf3_freq = 50;
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float paf0_cf = 200;
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float paf1_cf = 250;
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float paf2_cf = 250;
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float paf3_cf = 250;
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float paf0_bw = 100;
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float paf1_bw = 5000;
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float paf2_bw = 5000;
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float paf3_bw = 5000;
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float paf0_vib = 0;
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float paf1_vib = 1;
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float paf2_vib = 1;
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float paf3_vib = 1;
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float paf0_vfr = 2;
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float paf1_vfr = 2;
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float paf2_vfr = 2;
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float paf3_vfr = 2;
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float paf0_shift = 0;
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float paf1_shift = 0;
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float paf2_shift = 0;
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float paf3_shift = 0;
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float dl1mix = 0.0f;
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float dl2mix = 0.0f;
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float rmGain = 0.f;
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float sineShapeGain=0.1;
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float sineShapeASym = 0.f;
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float sineShapeMix = 0.f;
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float sineShapeMixInv = 1.f;
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size_t counter=0;
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size_t freqIndex = 0;
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size_t freqOffset = 0;
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float arpFreq=50;
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maxiLine line;
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float envamp=0.f;
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float detune = 1.0;
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maxiOsc phasorOsc;
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maxiTrigger zxdetect;
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size_t euclidN=4;
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float baseFreq = 50.0f; // Base frequency for the synth
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bool newNote=false;
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float noteVel = 0.f;
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bool firstParamsReceived = false;
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float envdec=0.2f/9000.f; // Decay rate for the envelope
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};
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#endif // __PAF_SYNTH_AUDIO_APP_HPP__
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