2014-08-24 15:47:59 -04:00
|
|
|
define(["Tone/core/Tone", "Tone/signal/Signal"], function(Tone){
|
2014-04-16 16:47:25 -04:00
|
|
|
|
2014-09-04 00:41:40 -04:00
|
|
|
"use strict";
|
|
|
|
|
2014-06-16 20:05:54 -04:00
|
|
|
/**
|
2015-06-19 00:52:04 -04:00
|
|
|
* @class Multiply two incoming signals. Or, if a number is given in the constructor,
|
|
|
|
* multiplies the incoming signal by that value.
|
2014-06-16 20:05:54 -04:00
|
|
|
*
|
|
|
|
* @constructor
|
2015-02-23 00:30:53 -05:00
|
|
|
* @extends {Tone.Signal}
|
2015-06-19 00:52:04 -04:00
|
|
|
* @param {number=} value Constant value to multiple. If no value is provided,
|
|
|
|
* it will return the product of the first and second inputs
|
2015-02-27 13:40:35 -05:00
|
|
|
* @example
|
2015-06-19 00:52:04 -04:00
|
|
|
* var mult = new Tone.Multiply();
|
|
|
|
* var sigA = new Tone.Signal(3);
|
|
|
|
* var sigB = new Tone.Signal(4);
|
|
|
|
* sigA.connect(mult, 0, 0);
|
|
|
|
* sigB.connect(mult, 0, 1);
|
|
|
|
* //output of mult is 12.
|
2015-06-20 15:50:57 -04:00
|
|
|
* @example
|
|
|
|
* var mult = new Tone.Multiply(10);
|
|
|
|
* var sig = new Tone.Signal(2).connect(mult);
|
|
|
|
* //the output of mult is 20.
|
2014-06-16 20:05:54 -04:00
|
|
|
*/
|
2014-04-16 19:56:18 -04:00
|
|
|
Tone.Multiply = function(value){
|
2014-10-22 21:20:43 -04:00
|
|
|
|
2014-11-04 01:21:42 -05:00
|
|
|
Tone.call(this, 2, 0);
|
2014-10-22 21:20:43 -04:00
|
|
|
|
2014-06-17 11:42:38 -04:00
|
|
|
/**
|
|
|
|
* the input node is the same as the output node
|
|
|
|
* it is also the GainNode which handles the scaling of incoming signal
|
|
|
|
*
|
|
|
|
* @type {GainNode}
|
2014-10-22 21:20:43 -04:00
|
|
|
* @private
|
|
|
|
*/
|
|
|
|
this._mult = this.input[0] = this.output = this.context.createGain();
|
|
|
|
|
|
|
|
/**
|
|
|
|
* the scaling parameter
|
|
|
|
* @type {AudioParam}
|
|
|
|
* @private
|
2014-06-17 11:42:38 -04:00
|
|
|
*/
|
2015-10-21 10:34:37 -04:00
|
|
|
this._param = this.input[1] = this.output.gain;
|
2014-06-30 17:11:46 -04:00
|
|
|
|
2015-10-21 10:34:37 -04:00
|
|
|
this._param.value = this.defaultArg(value, 0);
|
2014-06-15 17:38:59 -04:00
|
|
|
};
|
2014-04-16 16:47:25 -04:00
|
|
|
|
2015-02-23 00:30:53 -05:00
|
|
|
Tone.extend(Tone.Multiply, Tone.Signal);
|
2014-04-16 16:47:25 -04:00
|
|
|
|
2014-06-20 00:38:14 -04:00
|
|
|
/**
|
|
|
|
* clean up
|
2015-06-13 20:54:29 -04:00
|
|
|
* @returns {Tone.Multiply} this
|
2014-06-20 00:38:14 -04:00
|
|
|
*/
|
|
|
|
Tone.Multiply.prototype.dispose = function(){
|
2014-09-06 18:55:11 -04:00
|
|
|
Tone.prototype.dispose.call(this);
|
2015-04-05 14:42:14 -04:00
|
|
|
this._mult.disconnect();
|
2014-10-22 21:20:43 -04:00
|
|
|
this._mult = null;
|
2015-10-21 10:34:37 -04:00
|
|
|
this._param = null;
|
2015-02-01 22:56:33 -05:00
|
|
|
return this;
|
2014-06-20 00:38:14 -04:00
|
|
|
};
|
|
|
|
|
2014-04-16 16:47:25 -04:00
|
|
|
return Tone.Multiply;
|
2014-06-15 17:38:59 -04:00
|
|
|
});
|