Remix (0432)
For anyone who wants to remix this, my part of the audio is here.
Credits
- Drums by NorthWoods (Charlie Kramer)
Since Charlie wrote his submission in ChucK, I thought it would be fun to build on it with my own ChucK code. I wanted to add a bass part. I decided to use a cellular automaton to generate a sequence of MIDI notes for this bass part, although I ended up not keeping it in the bass register. I used 1-D cellular automaton 30. For better or worse, the results are definitely atonal.
Code
Here is the main ChucK code I wrote:
ElementaryCA.ck
public class ElementaryCA {
int ruleset[8];
fun int rules(int a, int b, int c) {
7 - (4 * a + 2 * b + c) => int index;
return ruleset[index];
}
fun int[] getNextGeneration(int currentGeneration[]) {
currentGeneration.cap() => int width;
int nextGeneration[currentGeneration.cap()];
for (0 => int i; i < width; i++) {
currentGeneration[((i - 1) + width) % width] => int a;
currentGeneration[i] => int b;
currentGeneration[(i + 1) % width] => int c;
rules(a, b, c) => nextGeneration[i];
}
return nextGeneration;
}
}
bass.ck
public class CAMoog {
Moog bass => NRev nRev => dac.right;
.05 => nRev.mix;
fun void playNote(int ca[], int beatNumber, int numStepsPerBar) {
beatNumber / (4.0 * numStepsPerBar) => float maxParamOffset;
0.5 - maxParamOffset => float minParam;
0.5 + maxParamOffset => float maxParam;
// ding!
Math.random2f(minParam, maxParam) => bass.filterQ;
Math.random2f(minParam, maxParam) => bass.filterSweepRate;
Math.random2f(minParam, maxParam) => bass.lfoDepth;
// One drop
if (beatNumber != 0 && beatNumber != 1) {
if (beatNumber % 2 == 0 || beatNumber == 5 || beatNumber == 13) {
0 => int midiNote;
for (1 => int i; i < 8; i++) {
ca[i] + 2 * midiNote => midiNote;
}
<<< "note:", midiNote >>>;
Std.mtof(midiNote) => bass.freq;
1 => bass.noteOn;
1.0 => bass.gain;
}
} else {
0.0 => bass.gain;
}
}
fun void silence() {
0.0 => bass.gain;
}
}
@NorthWoods
