diff options
| -rwxr-xr-x | main.cpp | 76 | ||||
| -rw-r--r-- | maximilianTest.xcodeproj/project.xcworkspace/xcuserdata/michaelgrierson.xcuserdatad/UserInterfaceState.xcuserstate | bin | 63022 -> 64358 bytes |
2 files changed, 68 insertions, 8 deletions
@@ -1,21 +1,81 @@ #include "maximilian.h" -maxiSample mySample; +//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 - mySample.load("/Users/michaelgrierson/Documents/workspace/coursera2/full-stack-mooc-5/code/week2/music_machine_2015/public/bassline32bit.wav"); - cout << mySample.myBitsPerSample; - + 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. - output[0]=mySample.play(2); + //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; + } - output[1]=output[0]; - } - diff --git a/maximilianTest.xcodeproj/project.xcworkspace/xcuserdata/michaelgrierson.xcuserdatad/UserInterfaceState.xcuserstate b/maximilianTest.xcodeproj/project.xcworkspace/xcuserdata/michaelgrierson.xcuserdatad/UserInterfaceState.xcuserstate Binary files differindex c3b8e23..86d07c4 100644 --- a/maximilianTest.xcodeproj/project.xcworkspace/xcuserdata/michaelgrierson.xcuserdatad/UserInterfaceState.xcuserstate +++ b/maximilianTest.xcodeproj/project.xcworkspace/xcuserdata/michaelgrierson.xcuserdatad/UserInterfaceState.xcuserstate |
