ref: d0fbdd5916dbf269d35008a3414263c34bcf3d35
dir: /LEAF/Src/leaf-808.c/
/*
==============================================================================
leaf_808.cpp
Created: 30 Nov 2018 10:24:21am
Author: airship
==============================================================================
*/
#if _WIN32 || _WIN64
#include "..\Inc\leaf-808.h"
#else
#include "../Inc/leaf-808.h"
#endif
#define USE_STICK 0
void t808Cowbell_on(t808Cowbell* const cowbell, float vel)
{
tEnvelope_on(&cowbell->envGain, vel);
#if USE_STICK
tEnvelope_on(&cowbell->envStick,vel);
#endif
}
float t808Cowbell_tick(t808Cowbell* const cowbell) {
float sample = 0.0f;
// Mix oscillators.
sample = (cowbell->oscMix * tSquare_tick(&cowbell->p[0])) + ((1.0f-cowbell->oscMix) * tSquare_tick(&cowbell->p[1]));
// Filter dive and filter.
tSVF_setFreq(&cowbell->bandpassOsc, cowbell->filterCutoff + 1000.0f * tEnvelope_tick(&cowbell->envFilter));
sample = tSVF_tick(&cowbell->bandpassOsc,sample);
sample *= (0.9f * tEnvelope_tick(&cowbell->envGain));
#if USE_STICK
sample += (0.1f * tEnvelope_tick(&cowbell->envStick) * tSVF_tick(&cowbell->bandpassStick, tNoise_tick(&cowbell->stick)));
#endif
sample = tHighpass_tick(&cowbell->highpass, sample);
return sample;
}
void t808Cowbell_setDecay(t808Cowbell* const cowbell, float decay)
{
tEnvelope_setDecay(&cowbell->envGain,decay);
}
void t808Cowbell_setHighpassFreq(t808Cowbell *cowbell, float freq)
{
tHighpass_setFreq(&cowbell->highpass,freq);
}
void t808Cowbell_setBandpassFreq(t808Cowbell* const cowbell, float freq)
{
cowbell->filterCutoff = freq;
}
void t808Cowbell_setFreq(t808Cowbell* const cowbell, float freq)
{
tSquare_setFreq(&cowbell->p[0],freq);
tSquare_setFreq(&cowbell->p[1],1.48148f*freq);
}
void t808Cowbell_setOscMix(t808Cowbell* const cowbell, float oscMix)
{
cowbell->oscMix = oscMix;
}
void t808Cowbell_init(t808Cowbell* const cowbell) {
tSquare_init(&cowbell->p[0]);
tSquare_setFreq(&cowbell->p[0], 540.0f);
tSquare_init(&cowbell->p[1]);
tSquare_setFreq(&cowbell->p[1], 1.48148f * 540.0f);
cowbell->oscMix = 0.5f;
tSVF_init(&cowbell->bandpassOsc, SVFTypeBandpass, 2500, 1.0f);
tSVF_init(&cowbell->bandpassStick, SVFTypeBandpass, 1800, 1.0f);
tEnvelope_init(&cowbell->envGain, 5.0f, 100.0f, OFALSE);
tEnvelope_init(&cowbell->envFilter, 5.0, 100.0f, OFALSE);
tHighpass_init(&cowbell->highpass, 1000.0f);
#if USE_STICK
tNoise_init(&cowbell->stick, NoiseTypeWhite);
tEnvelope_init(&cowbell->envStick, 5.0f, 5.0f, 0);
#endif
}
void t808Hihat_on(t808Hihat* const hihat, float vel) {
tEnvelope_on(&hihat->envGain, vel);
tEnvelope_on(&hihat->envStick, vel);
}
void t808Hihat_setOscNoiseMix(t808Hihat* const hihat, float oscNoiseMix) {
hihat->oscNoiseMix = oscNoiseMix;
}
float t808Hihat_tick(t808Hihat* const hihat) {
float sample = 0.0f;
float gainScale = 0.1666f;
float myNoise = tNoise_tick(&hihat->n);
tSquare_setFreq(&hihat->p[0], ((2.0f + hihat->stretch) * hihat->freq));
tSquare_setFreq(&hihat->p[1], ((3.00f + hihat->stretch) * hihat->freq));
tSquare_setFreq(&hihat->p[2], ((4.16f + hihat->stretch) * hihat->freq));
tSquare_setFreq(&hihat->p[3], ((5.43f + hihat->stretch) * hihat->freq));
tSquare_setFreq(&hihat->p[4], ((6.79f + hihat->stretch) * hihat->freq));
tSquare_setFreq(&hihat->p[5], ((8.21f + hihat->stretch) * hihat->freq));
for (int i = 0; i < 6; i++)
{
sample += tSquare_tick(&hihat->p[i]);
}
sample *= gainScale;
sample = (hihat->oscNoiseMix * sample) + ((1.0f-hihat->oscNoiseMix) * myNoise);
sample = tSVF_tick(&hihat->bandpassOsc, sample);
float myGain = tEnvelope_tick(&hihat->envGain);
sample *= (myGain*myGain);//square the output gain envelope
sample = tHighpass_tick(&hihat->highpass, sample);
sample += ((0.5f * tEnvelope_tick(&hihat->envStick)) * tSVF_tick(&hihat->bandpassStick, tNoise_tick(&hihat->stick)));
sample = tanhf(sample * 2.0f);
return sample;
}
void t808Hihat_setDecay(t808Hihat* const hihat, float decay)
{
tEnvelope_setDecay(&hihat->envGain,decay);
}
void t808Hihat_setHighpassFreq(t808Hihat* const hihat, float freq)
{
tHighpass_setFreq(&hihat->highpass,freq);
}
void t808Hihat_setStretch(t808Hihat* const hihat, float stretch)
{
hihat->stretch = stretch;
}
void t808Hihat_setFM(t808Hihat* const hihat, float FM_amount)
{
hihat->FM_amount = FM_amount;
}
void t808Hihat_setOscBandpassFreq(t808Hihat* const hihat, float freq)
{
tSVF_setFreq(&hihat->bandpassOsc,freq);
}
void t808Hihat_setOscBandpassQ(t808Hihat* const hihat, float Q)
{
tSVF_setQ(&hihat->bandpassOsc,Q);
}
void t808Hihat_setStickBandPassFreq(t808Hihat* const hihat, float freq)
{
tSVF_setFreq(&hihat->bandpassStick,freq);
}
void t808Hihat_setStickBandPassQ(t808Hihat* const hihat, float Q)
{
tSVF_setQ(&hihat->bandpassStick,Q);
}
void t808Hihat_setOscFreq(t808Hihat* const hihat, float freq)
{
hihat->freq = freq;
}
void t808Hihat_init(t808Hihat* const hihat)
{
for (int i = 0; i < 6; i++)
{
tSquare_init(&hihat->p[i]);
}
tNoise_init(&hihat->stick, PinkNoise);
tNoise_init(&hihat->n, WhiteNoise);
// need to fix SVF to be generic
tSVF_init(&hihat->bandpassStick, SVFTypeBandpass,2500.0f,1.2f);
tSVF_init(&hihat->bandpassOsc, SVFTypeBandpass,3500.0f,0.3f);
tEnvelope_init(&hihat->envGain, 0.0f, 50.0f, OFALSE);
tEnvelope_init(&hihat->envStick, 0.0f, 7.0f, OFALSE);
tHighpass_init(&hihat->highpass, 7000.0f);
hihat->freq = 40.0f;
hihat->stretch = 0.0f;
tSquare_setFreq(&hihat->p[0], 2.0f * hihat->freq);
tSquare_setFreq(&hihat->p[1], 3.00f * hihat->freq);
tSquare_setFreq(&hihat->p[2], 4.16f * hihat->freq);
tSquare_setFreq(&hihat->p[3], 5.43f * hihat->freq);
tSquare_setFreq(&hihat->p[4], 6.79f * hihat->freq);
tSquare_setFreq(&hihat->p[5], 8.21f * hihat->freq);
}
void t808Snare_on(t808Snare* const snare, float vel)
{
for (int i = 0; i < 2; i++)
{
tEnvelope_on(&snare->toneEnvOsc[i], vel);
tEnvelope_on(&snare->toneEnvGain[i], vel);
tEnvelope_on(&snare->toneEnvFilter[i], vel);
}
tEnvelope_on(&snare->noiseEnvGain, vel);
tEnvelope_on(&snare->noiseEnvFilter, vel);
}
void t808Snare_setTone1Freq(t808Snare* const snare, float freq)
{
snare->tone1Freq = freq;
tTriangle_setFreq(&snare->tone[0], freq);
}
void t808Snare_setTone2Freq(t808Snare* const snare, float freq)
{
snare->tone2Freq = freq;
tTriangle_setFreq(&snare->tone[1],freq);
}
void t808Snare_setTone1Decay(t808Snare* const snare, float decay)
{
tEnvelope_setDecay(&snare->toneEnvGain[0],decay);
}
void t808Snare_setTone2Decay(t808Snare* const snare, float decay)
{
tEnvelope_setDecay(&snare->toneEnvGain[1],decay);
}
void t808Snare_setNoiseDecay(t808Snare* const snare, float decay)
{
tEnvelope_setDecay(&snare->noiseEnvGain,decay);
}
void t808Snare_setToneNoiseMix(t808Snare* const snare, float toneNoiseMix)
{
snare->toneNoiseMix = toneNoiseMix;
}
void t808Snare_setNoiseFilterFreq(t808Snare* const snare, float noiseFilterFreq)
{
snare->noiseFilterFreq = noiseFilterFreq;
}
void t808Snare_setNoiseFilterQ(t808Snare* const snare, float noiseFilterQ)
{
tSVF_setQ(&snare->noiseLowpass, noiseFilterQ);
}
static float tone[2];
float t808Snare_tick(t808Snare* const snare)
{
for (int i = 0; i < 2; i++)
{
tTriangle_setFreq(&snare->tone[i], snare->tone1Freq + (20.0f * tEnvelope_tick(&snare->toneEnvOsc[i])));
tone[i] = tTriangle_tick(&snare->tone[i]);
tSVF_setFreq(&snare->toneLowpass[i], 2000.0f + (500.0f * tEnvelope_tick(&snare->toneEnvFilter[i])));
tone[i] = tSVF_tick(&snare->toneLowpass[i], tone[i]) * tEnvelope_tick(&snare->toneEnvGain[i]);
}
float noise = tNoise_tick(&snare->noiseOsc);
tSVF_setFreq(&snare->noiseLowpass, snare->noiseFilterFreq + (1000.0f * tEnvelope_tick(&snare->noiseEnvFilter)));
noise = tSVF_tick(&snare->noiseLowpass, noise) * tEnvelope_tick(&snare->noiseEnvGain);
float sample = (snare->toneNoiseMix)*(tone[0] * snare->toneGain[0] + tone[1] * snare->toneGain[1]) + (1.0f-snare->toneNoiseMix) * (noise * snare->noiseGain);
sample = tanhf(sample * 2.0f);
return sample;
}
void t808Snare_init(t808Snare* const snare)
{
float ratio[2] = {1.0, 1.5};
for (int i = 0; i < 2; i++)
{
tTriangle_init(&snare->tone[i]);
tTriangle_setFreq(&snare->tone[i], ratio[i] * 400.0f);
tSVF_init(&snare->toneLowpass[i], SVFTypeLowpass, 4000, 1.0f);
tEnvelope_init(&snare->toneEnvOsc[i], 0.0f, 50.0f, OFALSE);
tEnvelope_init(&snare->toneEnvGain[i], 1.0f, 150.0f, OFALSE);
tEnvelope_init(&snare->toneEnvFilter[i], 1.0f, 2000.0f, OFALSE);
snare->toneGain[i] = 0.5f;
}
snare->tone1Freq = ratio[0] * 100.0f;
snare->tone2Freq = ratio[1] * 100.0f;
snare->noiseFilterFreq = 3000.0f;
tNoise_init(&snare->noiseOsc, WhiteNoise);
tSVF_init(&snare->noiseLowpass, SVFTypeLowpass, 12000.0f, 0.8f);
tEnvelope_init(&snare->noiseEnvGain, 0.0f, 100.0f, OFALSE);
tEnvelope_init(&snare->noiseEnvFilter, 0.0f, 1000.0f, OFALSE);
snare->noiseGain = 1.0f;
}
void t808Snare_free (t808Snare* const snare)
{
for (int i = 0; i < 2; i++)
{
tTriangle_free(&snare->tone[i]);
tSVF_free(&snare->toneLowpass[i]);
tEnvelope_free(&snare->toneEnvOsc[i]);
tEnvelope_free(&snare->toneEnvGain[i]);
tEnvelope_free(&snare->toneEnvFilter[i]);
}
tNoise_free(&snare->noiseOsc);
tSVF_free(&snare->noiseLowpass);
tEnvelope_free(&snare->noiseEnvGain);
tEnvelope_free(&snare->noiseEnvFilter);
}
void t808Kick_init (t808Kick* const kick)
{
tCycle_init(&kick->tone);
kick->toneInitialFreq = 40.0f;
kick->sighAmountInHz = 7.0f;
kick->chirpRatioMinusOne = 3.3f;
tCycle_setFreq(&kick->tone, 50.0f);
tSVF_init(&kick->toneLowpass, SVFTypeLowpass, 2000.0f, 0.5f);
tEnvelope_init(&kick->toneEnvOscChirp, 0.0f, 20.0f, OFALSE);
tEnvelope_init(&kick->toneEnvOscSigh, 0.0f, 2500.0f, OFALSE);
tEnvelope_init(&kick->toneEnvGain, 0.0f, 800.0f, OFALSE);
tNoise_init(&kick->noiseOsc, PinkNoise);
tEnvelope_init(&kick->noiseEnvGain, 0.0f, 1.0f, OFALSE);
kick->noiseGain = 0.3f;
}
void t808Kick_free (t808Kick* const kick)
{
tCycle_free(&kick->tone);
tSVF_free(&kick->toneLowpass);
tEnvelope_free(&kick->toneEnvOscChirp);
tEnvelope_free(&kick->toneEnvOscSigh);
tEnvelope_free(&kick->toneEnvGain);
tNoise_free(&kick->noiseOsc);
tEnvelope_free(&kick->noiseEnvGain);
}
float t808Kick_tick (t808Kick* const kick)
{
tCycle_setFreq(&kick->tone, (kick->toneInitialFreq * (1.0f + (kick->chirpRatioMinusOne * tEnvelope_tick(&kick->toneEnvOscChirp)))) + (kick->sighAmountInHz * tEnvelope_tick(&kick->toneEnvOscSigh)));
float sample = tCycle_tick(&kick->tone) * tEnvelope_tick(&kick->toneEnvGain);
sample+= tNoise_tick(&kick->noiseOsc) * tEnvelope_tick(&kick->noiseEnvGain);
//add distortion here
sample = tSVF_tick(&kick->toneLowpass, sample);
return sample;
}
void t808Kick_on (t808Kick* const kick, float vel)
{
tEnvelope_on(&kick->toneEnvOscChirp, vel);
tEnvelope_on(&kick->toneEnvOscSigh, vel);
tEnvelope_on(&kick->toneEnvGain, vel);
tEnvelope_on(&kick->noiseEnvGain, vel);
}
void t808Kick_setToneFreq (t808Kick* const kick, float freq)
{
kick->toneInitialFreq = freq;
}
void t808Kick_setToneDecay (t808Kick* const kick, float decay)
{
tEnvelope_setDecay(&kick->toneEnvGain,decay);
tEnvelope_setDecay(&kick->toneEnvGain,decay * 3.0f);
}
void t808Kick_setNoiseDecay (t808Kick* const kick, float decay);
void t808Kick_setSighAmount (t808Kick* const kick, float sigh);
void t808Kick_setChirpAmount (t808Kick* const kick, float chirp);
void t808Kick_setToneNoiseMix (t808Kick* const kick, float toneNoiseMix);
void t808Kick_setNoiseFilterFreq (t808Kick* const kick, float noiseFilterFreq);
void t808Kick_setNoiseFilterQ (t808Kick* const kick, float noiseFilterQ);