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add velocity effects

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2026-01-14 21:32:50 -06:00
parent cff31af328
commit 0450482773
2 changed files with 14 additions and 4 deletions
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14
src/synth/Voice.cpp
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@@ -1,6 +1,7 @@
#include "Voice.h" #include "Voice.h"
#include <cmath> #include <cmath>
#include <iostream>
Voice::Voice(SmoothedParam* params) : params_(params) { Voice::Voice(SmoothedParam* params) : params_(params) {
@@ -78,7 +79,11 @@ float Voice::process(float* params, bool& scopeTrigger) {
float pitchOffset = 1.0f; float pitchOffset = 1.0f;
float phaseInc = pitchOffset * 2.0f * M_PI * frequency_ / static_cast<float>(sampleRate_); float phaseInc = pitchOffset * 2.0f * M_PI * frequency_ / static_cast<float>(sampleRate_);
float gain = gainEnv * getParam(ParamId::Osc1VolumeDepth); // calculate the change that the velocity will make
// TODO: make velocity parameters configurable, probably also for filterCutoff and filterResonance
float velocityGain = std::lerp(velocityCenter, velocity_, velocitySensitivity);
float gain = gainEnv * getParam(ParamId::Osc1VolumeDepth) * velocityGain;
float sampleOut = 0.0f; float sampleOut = 0.0f;
// sample generation // sample generation
@@ -108,9 +113,10 @@ float Voice::process(float* params, bool& scopeTrigger) {
} }
// filter sample // filter sample
float cutoffFreq = cutoffEnv * pow(2.0f, getParam(ParamId::FilterCutoffDepth)) * frequency_; float cutoffFreq = cutoffEnv * pow(2.0f, getParam(ParamId::FilterCutoffDepth)) * frequency_ * velocityGain;
filter1_.setParams(Filter::Type::BiquadLowpass, cutoffFreq, resonanceEnv * getParam(ParamId::FilterResonanceDepth)); float resonance = resonanceEnv * getParam(ParamId::FilterResonanceDepth) * velocityGain;
filter2_.setParams(Filter::Type::BiquadLowpass, cutoffFreq, resonanceEnv * getParam(ParamId::FilterResonanceDepth)); filter1_.setParams(Filter::Type::BiquadLowpass, cutoffFreq, resonance);
filter2_.setParams(Filter::Type::BiquadLowpass, cutoffFreq, resonance);
sampleOut = filter1_.biquadProcess(sampleOut); sampleOut = filter1_.biquadProcess(sampleOut);
sampleOut = filter2_.biquadProcess(sampleOut); sampleOut = filter2_.biquadProcess(sampleOut);

4
src/synth/Voice.h
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@@ -71,4 +71,8 @@ private:
// paramstore pointer // paramstore pointer
SmoothedParam* params_; SmoothedParam* params_;
// TODO: add a parameter in the paramstore for this
float velocitySensitivity = 0.7f;
float velocityCenter = 2.0f;
}; };