class:: Pmulp
summary:: multiply with each value of a pattern to value of a key in event stream
related:: Classes/Pmul, Classes/Paddp
categories:: Streams-Patterns-Events>Patterns>Math

description::

Multiplies a value in an event stream until it ends, repeats this with new values until the value stream ends.

ClassMethods::

method::new

argument::value
can be a pattern, a stream or an array. The resulting stream ends when that incoming stream ends.

Examples::

code::
(
var a, b;
a = Pmulp(\freq, Pseq([2, 3, pi],inf), Pbind(\freq, Pseq([100, 200, 300])));
x = a.asStream;
9.do({ x.next(Event.new).postln; });
)
::

code::
//sound example
(
SynthDef(\sinegrain,
	{ arg out=0, freq=440, sustain=0.02;
		var env;
		env = EnvGen.kr(Env.perc(0.001, sustain), 1, doneAction:2);
		Out.ar(out, SinOsc.ar(freq, 0, env * 0.1))
	}).add;
)

(
a = Pbind(\freq, Pseq([500, 600, 700]), \instrument, \sinegrain);
a = Pmulp(\freq, Pseq([0.5, 0.9, 0.8], inf), a);
a.play;
)
::
