I have built the following simple synth structure which creates a synth and routes its output through an effects unit:
b = Bus.audio(numChannels: 2);
SynthDef(
"mySynth",
{
|freq, amp, gate = 1|
var vol = 0.5;
var audio = Pulse.ar(freq, 0.5);
var env = EnvGen.kr(Env.perc, doneAction:2);
audio = Pan2.ar(audio, MouseX.kr(-1, 1));
Out.ar(b, audio * env);
}
).add;
SynthDef(
"effects",
{
var audio = In.ar(b, 2);
audio = LPF.ar(audio, MouseY.kr(200, 1000));
//TODO: Implement some crazy, revolutionary effects
Out.ar(0, audio);
}
).add;
// **** Dividing line for executing the code ****
e = Synth(\effects);
p = Pbind(*[
instrument: \mySynth,
scale: #[0, 2, 4, 5, 7, 9, 11],
degree: Pseq([3, 3, 9, 9, 2, 9, 9, 3, 5, 7], inf),
dur: Pseq([0.2, 0.2, 0.2, 0.1, 0.1, 0.2, 0.2, 0.2, 0.1, 0.1], inf),
amp: Pseq([1, 0.6, 0.9, 0.3, 0.4, 0.9, 0.6, 0.85, 0.3, 0.4], inf),
]);
p.play;
This only produces audible output when I execute the code in a particular way:
- I can execute each block individually, in order, and I get audible output.
- I can execute the first blocks up to the 'dividing line' comment, then the following blocks, and I get audible output.
- If I execute all the code together, I don't get audible output.
I'm guessing there has to be some delay between declaring a SynthDef
and then instantiate it using Synth()
, while the server does set setup stuff. Can anyone shed any light?
It is because you can't just "add" SynthDefs to the server and create an instance of said synth in the same execution. If you "play" the synths as they are executed then an instance of them gets added to the server so that when you call the Synth up for execution it will already be loaded. Working code is included below.