21 Dec
2008
21 Dec
'08
5:09 p.m.
oops, meant to send this to the list
---------- Forwarded message ----------
From: Justin Smith <noisesmith(a)gmail.com>
Date: Sun, Dec 21, 2008 at 1:08 PM
Subject: Re: [LAU] circular ugen connections in supercollider
To: andy baxter <andy(a)earthsong.free-online.co.uk>
What you want is most likely a very short delay line from the second
unit with a reader of that line at the input of the first. I am fairly
certain that the delay has to be at least one audio chunk in length
(even if sc lets you specify a shorter delay, it cannot do a shorter
delay without infinite recursion issues).
On Sun, Dec 21, 2008 at 10:50 AM, andy baxter
<andy(a)earthsong.free-online.co.uk> wrote:
Does anyone know how to make circular ugen connections
in supercollider?
I.e. I have two chains of UGens (simple string models), which each take
two inputs, an impulse and (roughly) a frequency. I want a fraction of
the output of the first to go into the impulse of the second, and the
same the other way round, so they both affect each other. Then the idea
is to apply an extra impulse to one 'string' and see if the other one
resonates with it.
I can do it with the two arranged in a chain, which is nearly what I
want, but I really want a loop so I can choose to apply the impulse to
either string. My code so far looks like this:
(
{
var imp=EnvGen.ar(Env.triangle(0.01,1));
var sprGen,s1,s2;
sprGen={arg impulse,konst;
var harmPower=1;
var nh=20;
var spr;
spr=Array.fill(nh,{ arg ind; var hAmp;
ind.postln;
hAmp=1/((ind+1)**harmPower);
hAmp.postln;
hAmp*Spring.ar(impulse,konst*(ind+1),0.0001);
});
Mix.new(spr);
};
s1=sprGen.value(imp,50);
s2=sprGen.value(s1/10,150);
Mix.new([s1,s2]);
}.play;
);
Thanks for any help with this - hope it's not too much of an esoteric
question.
andy
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