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#include "maximilian.h"
//This shows how to use maximilian to build a polyphonic synth.
//These are the synthesiser bits
maxiOsc VCO1[6],VCO2[6],LFO1[6],LFO2[6];
maxiFilter VCF[6];
maxiEnv ADSR[6];
//This is a bunch of control signals so that we can hear something
maxiOsc timer;//this is the metronome
int currentCount,lastCount,voice=0;//these values are used to check if we have a new beat this sample
//and these are some variables we can use to pass stuff around
double VCO1out[6],VCO2out[6],LFO1out[6],LFO2out[6],VCFout[6],ADSRout[6],mix,pitch[6];
void setup() {//some inits
for (int i=0;i<6;i++) {
ADSR[i].setAttack(0);
ADSR[i].setDecay(200);
ADSR[i].setSustain(0.2);
ADSR[i].setRelease(2000);
}
}
void play(double *output) {
mix=0;//we're adding up the samples each update and it makes sense to clear them each time first.
//so this first bit is just a basic metronome so we can hear what we're doing.
currentCount=(int)timer.phasor(8);//this sets up a metronome that ticks 8 times a second
if (lastCount!=currentCount) {//if we have a new timer int this sample, play the sound
if (voice==6) {
voice=0;
}
ADSR[voice].trigger=1;//trigger the envelope from the start
pitch[voice]=voice+1;
voice++;
}
//and this is where we build the synth
for (int i=0; i<6; i++) {
ADSRout[i]=ADSR[i].adsr(1.,ADSR[i].trigger);//our ADSR env is passed a constant signal of 1 to generate the transient.
LFO1out[i]=LFO1[i].sinebuf(0.2);//this lfo is a sinewave at 0.2 hz
VCO1out[i]=VCO1[i].pulse(55*pitch[i],0.6);//here's VCO1. it's a pulse wave at 55 hz, with a pulse width of 0.6
VCO2out[i]=VCO2[i].pulse((110*pitch[i])+LFO1out[i],0.2);//here's VCO2. it's a pulse wave at 110hz with LFO modulation on the frequency, and width of 0.2
VCFout[i]=VCF[i].lores((VCO1out[i]+VCO2out[i])*0.5, 250+((pitch[i]+LFO1out[i])*1000), 10);//now we stick the VCO's into the VCF, using the ADSR as the filter cutoff
mix+=VCFout[i]*ADSRout[i]/6;//finally we add the ADSR as an amplitude modulator
}
output[0]=mix*0.5;//left channel
output[1]=mix*0.5;//right channel
// This just sends note-off messages.
for (int i=0; i<6; i++) {
ADSR[i].trigger=0;
}
}
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