«Midterm Question 1» by Mason McCormack

on 31 Oct'16 05:31 in
log fork json 
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( 
SynthDef("pulsey", {arg freq = 40, amp = 0.1; 
	var env = Pulse.kr
	var snd = Pulse.ar(
		freq: LFNoise2.kr([4,5,7]).range(0.988, 1.011), 
		mul: Env.perc(attackTime:0.2, releaseTime: 4, level:amp).kr(2)

	);
	

	LPF.ar(in: snd, freq:1000);

	snd = Splay.ar(snd);
	
	
	Out.ar(0,snd) 

}).add;
)

(
m = [72, 79, 77, 79, 82, 79, 87, 86, 84, 82, 84, 79];


Pbind(
    \instrument, "pulsey",
    \midinote, Pseq(m, inf),
    \dur, Pseq([Pn(0.5, 5),    1.5], inf),
    \amp, Pwhite(0.15, 0.2)
).play;


Pbind(
    \instrument, "pulsey",
    \midinote, Pseq(m.reverse, inf),
    \dur, Pseq([Pn(0.5, 5), 1.5], inf),
    \ctranspose, Pwrand([-12, -7, -24], [0.8, 0.1, 0.1], inf),
    \amp, 0.08,
).play;
)
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reception
comments
Bruno Ruviaro ↪ user 03 Nov'16 23:12

SynthDef code throws an error message due to incomplete line 3. Line 3: wrong envelope spec, should be Env.perc Line 5: should be freq * LFNoise2.kr, not just LFNoise2.kr

Bruno Ruviaro ↪ user 03 Nov'16 23:13

0.5 pt

Bruno Ruviaro ↪ user 03 Nov'16 23:20

Line 3: Env.perc should be there, not a Pulse.kr

Line 3: missing semicolon at end

Line 5: missing freq * before LFNoise2. The result is that your frequencies are all between 0.988 and 1.011, which are not audible.

Line 6: Env.perc is correct, but you should have put it in the variable env on line 3.

// Code does not works as expected (no errors, and it makes sound)

// SynthDef argument freq is not used at all in the body of the SynthDef.

// Variable env is not used correctly to organize code

// UGen Pulse.kr does not belong, and freq input of Pulse is incomplete.

// As a result, example Pbind does not work.