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authorMick Grierson <mickgrierson@strangebook.lan>2011-10-09 22:44:17 +0100
committerMick Grierson <mickgrierson@strangebook.lan>2011-10-09 22:44:17 +0100
commite0b77b9814d80cb5ed7dd7d11c9568f342286d60 (patch)
treea457b28e01c50feea60810ff17bc572b8eeb9081 /main.cpp
parent7efb776b1e6862ee2f27ece6499f10690ea7b477 (diff)
added monosynth example to main.cpp
Diffstat (limited to 'main.cpp')
-rwxr-xr-xmain.cpp60
1 files changed, 42 insertions, 18 deletions
diff --git a/main.cpp b/main.cpp
index 2457910..dd4dbf2 100755
--- a/main.cpp
+++ b/main.cpp
@@ -1,35 +1,59 @@
#include "maximilian.h"
-maxiOsc myCounter,mySwitchableOsc;//
-int CurrentCount;//
-double myOscOutput,myFilteredOutput;//
-double myEnvelopeData[6] = {500,0,1000,500,0,500};//this data will be used to make an envelope. Value and time to value in ms.
-maxiEnvelope myEnvelope;
-maxiFilter myFilter;
+//This shows how to use maximilian to build a monophonic synth
+
+//This is the synthesiser bits
+maxiOsc VCO1,VCO2,LFO1,LFO2;
+maxiFilter VCF;
+maxiEnvelope ADSR;
+
+//These are the control values for the envelope
+
+double adsrEnv[8]={1,5,0.125,250,0.125,125,0,500};
+
+//This is a bunch of control signals so that we can here something
+
+maxiOsc timer;//this is the metronome
+int currentCount,lastCount;//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,VCO2out,LFO1out,LFO2out,VCFout,ADSRout;
+
void setup() {//some inits
- myEnvelope.amplitude=myEnvelopeData[0]; //initialise the envelope
+
+
}
void play(double *output) {
- CurrentCount=myCounter.phasor(1, 1, 9);//phasor can take three arguments; frequency, start value and end value.
+ //so this first bit is just a basic metronome so we can hear what we're doing.
- if (CurrentCount<5)//simple if statement
-
- myOscOutput=mySwitchableOsc.square(CurrentCount*100);
+ currentCount=(int)timer.phasor(0.5);//this sets up a metronome that ticks every 2 seconds
- else if (CurrentCount>=5)//and the 'else' bit.
+ if (lastCount!=currentCount) {//if we have a new timer int this sample, play the sound
+
+ ADSR.trigger(0, adsrEnv[0]);//trigger the envelope from the start
- myOscOutput=mySwitchableOsc.saw(CurrentCount*50);//one osc object can produce whichever waveform you want.
+ cout << "tick\n";//ticking twice for some reason
+
+ lastCount=currentCount;//set the last count to the current count
+ }
+
+ //and this is where we build the synth
- if (CurrentCount==1)
- myEnvelope.trigger(0,myEnvelopeData[0]); //trigger the envelope
+ ADSRout=ADSR.line(8,adsrEnv);//our ADSR env has 8 value/time pairs.
- myFilteredOutput=myFilter.lores(myOscOutput,(myEnvelope.line(6, myEnvelopeData)),10);//lores takes an audio input, a frequency and a resonance factor (1-100)
+ LFO1out=LFO1.sinebuf(0.2);//this lfo is a sinewave at 0.2 hz
- *output=myFilteredOutput;//point me at your speakers and fire.
-}
+ VCO1out=VCO1.pulse(55,0.6);//here's VCO1. it's a pulse wave at 55 hz, with a pulse width of 0.6
+ VCO2out=VCO2.pulse(110+LFO1out,0.2);//here's VCO2. it's a pulse wave at 110hz with LFO modulation on the frequency, and width of 0.2
+ VCFout=VCF.lores((VCO1out+VCO2out)*0.5, 250+(ADSRout*15000), 10);//now we stick the VCO's into the VCF, using the ADSR as the filter cutoff
+
+ *output=VCFout*ADSRout;//finally we add the ADSR as an amplitude modulator
+
+}