mirror of
https://github.com/Tonejs/Tone.js
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63 lines
1.5 KiB
JavaScript
63 lines
1.5 KiB
JavaScript
define(["../core/Tone", "../effect/Effect", "../signal/Signal",
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"../signal/Multiply", "../core/Gain"], function(Tone){
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"use strict";
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/**
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* @class Tone.FeedbackEffect provides a loop between an
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* audio source and its own output. This is a base-class
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* for feedback effects.
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*
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* @constructor
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* @extends {Tone.Effect}
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* @param {NormalRange|Object} [feedback] The initial feedback value.
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*/
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Tone.FeedbackEffect = function(){
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var options = Tone.defaults(arguments, ["feedback"], Tone.FeedbackEffect);
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Tone.Effect.call(this, options);
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/**
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* the gain which controls the feedback
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* @type {Tone.Gain}
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* @private
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*/
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this._feedbackGain = new Tone.Gain(options.feedback, Tone.Type.NormalRange);
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/**
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* The amount of signal which is fed back into the effect input.
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* @type {NormalRange}
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* @signal
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*/
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this.feedback = this._feedbackGain.gain;
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//the feedback loop
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this.effectReturn.chain(this._feedbackGain, this.effectSend);
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this._readOnly(["feedback"]);
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};
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Tone.extend(Tone.FeedbackEffect, Tone.Effect);
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/**
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* @static
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* @type {Object}
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*/
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Tone.FeedbackEffect.defaults = {
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"feedback" : 0.125
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};
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/**
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* Clean up.
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* @returns {Tone.FeedbackEffect} this
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*/
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Tone.FeedbackEffect.prototype.dispose = function(){
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Tone.Effect.prototype.dispose.call(this);
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this._writable(["feedback"]);
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this._feedbackGain.dispose();
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this._feedbackGain = null;
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this.feedback = null;
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return this;
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};
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return Tone.FeedbackEffect;
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});
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