diff options
Diffstat (limited to 'maximilian_examples/15.polysynth.cpp')
| -rw-r--r-- | maximilian_examples/15.polysynth.cpp | 109 |
1 files changed, 58 insertions, 51 deletions
diff --git a/maximilian_examples/15.polysynth.cpp b/maximilian_examples/15.polysynth.cpp index 6cb5c44..fefc261 100644 --- a/maximilian_examples/15.polysynth.cpp +++ b/maximilian_examples/15.polysynth.cpp @@ -5,11 +5,7 @@ //These are the synthesiser bits maxiOsc VCO1[6],VCO2[6],LFO1[6],LFO2[6]; maxiFilter VCF[6]; -maxiEnvelope ADSR[6]; - -//These are the control values for the envelope - -double adsrEnv[8]={1,5,0.125,100,0.125,200,0,1000}; +maxiEnv ADSR[6]; //This is a bunch of control signals so that we can hear something @@ -22,53 +18,64 @@ double VCO1out[6],VCO2out[6],LFO1out[6],LFO2out[6],VCFout[6],ADSRout[6],mix,pitc 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(0, adsrEnv[0]);//trigger the envelope from the start - pitch[voice]=voice+1; - voice++; - - lastCount=0; - - } - - //and this is where we build the synth - - for (int i=0; i<6; i++) { - - - ADSRout[i]=ADSR[i].line(8,adsrEnv);//our ADSR env has 8 value/time pairs. - - 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 - + + 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; + } + } |