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authorMick Grierson <mickgrierson@strangebook.lan>2011-10-10 00:19:19 +0100
committerMick Grierson <mickgrierson@strangebook.lan>2011-10-10 00:19:19 +0100
commit2ba7a5056011da98c04fe33b5ee4b74d3a35da8c (patch)
tree99ac2f241cd97142e67e28ffeb5632cb291bbfa7
parentd20f58d7186794f6621bca8017c64ba50ace655e (diff)
fixed channel problem in player.cpp. Also started work on a polysynth example
-rwxr-xr-xmain.cpp57
-rw-r--r--player.cpp4
2 files changed, 39 insertions, 22 deletions
diff --git a/main.cpp b/main.cpp
index cd9cd46..7348246 100755
--- a/main.cpp
+++ b/main.cpp
@@ -1,24 +1,24 @@
#include "maximilian.h"
-//This shows how to use maximilian to build a monophonic synth
+//This shows how to use maximilian to build a polyphonic synth. Works but something weirds going on with the ticks. Hmm..
//These are the synthesiser bits
-maxiOsc VCO1,VCO2,LFO1,LFO2;
-maxiFilter VCF;
-maxiEnvelope ADSR;
+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]={1,5,0.125,250,0.125,125,0,500};
+double adsrEnv[8]={1,5,0.125,50,0.125,125,0,100};
//This is a bunch of control signals so that we can hear something
maxiOsc timer;//this is the metronome
-int currentCount,lastCount;//these values are used to check if we have a new beat this sample
+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,VCO2out,LFO1out,LFO2out,VCFout,ADSRout;
+double VCO1out[6],VCO2out[6],LFO1out[6],LFO2out[6],VCFout[6],ADSRout[6],mix,pitch[6];
void setup() {//some inits
@@ -30,30 +30,47 @@ void play(double *output) {
//so this first bit is just a basic metronome so we can hear what we're doing.
- currentCount=(int)timer.phasor(0.5);//this sets up a metronome that ticks every 2 seconds
+ 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
-
- ADSR.trigger(0, adsrEnv[0]);//trigger the envelope from the start
+
+ if (voice==6) {
+ voice=0;
+ }
+
+ ADSR[voice].trigger(0, adsrEnv[0]);//trigger the envelope from the start
+ pitch[voice]=voice;
+ voice++;
cout << "tick\n";//ticking twice for some reason
-
+ cout << voice;//ticking twice for some reason
+ cout << "\n";//ticking twice for some reason
+
+
lastCount=currentCount;//set the last count to the current count
+
+
}
//and this is where we build the synth
-
- ADSRout=ADSR.line(8,adsrEnv);//our ADSR env has 8 value/time pairs.
+ for (int i=0; i<6; i++) {
+
- LFO1out=LFO1.sinebuf(0.2);//this lfo is a sinewave at 0.2 hz
+ 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
- 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
+ VCFout[i]=VCF[i].lores((VCO1out[i]+VCO2out[i])*0.5, 250+(ADSRout[i]*15000), 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=mix;
}
diff --git a/player.cpp b/player.cpp
index cc7aafd..51ae4fb 100644
--- a/player.cpp
+++ b/player.cpp
@@ -25,7 +25,7 @@
void setup();//use this to do any initialisation if you want.
-void play(double *channels);//run dac! Very very often. Too often in fact. er...
+void play(double *output);//run dac! Very very often. Too often in fact. er...
@@ -58,7 +58,7 @@ int routing (void *outputBuffer, void *inputBuffer, unsigned int nBufferFrames,
for ( i=0; i<nBufferFrames; i++ ) {
play(lastValues);
for ( j=0; j<maxiSettings::channels; j++ ) {
- *buffer++=lastValues[0];
+ *buffer++=lastValues[j];
}
}
return 0;