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https://github.com/Tonejs/Tone.js
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72 lines
1.8 KiB
JavaScript
72 lines
1.8 KiB
JavaScript
define(["Tone/core/Tone", "Tone/effect/FeedbackEffect", "Tone/signal/Signal", "Tone/core/Delay"], function(Tone){
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"use strict";
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/**
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* @class Tone.FeedbackDelay is a DelayNode in which part of output
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* signal is fed back into the delay.
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*
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* @constructor
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* @extends {Tone.FeedbackEffect}
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* @param {Time|Object} [delayTime] The delay applied to the incoming signal.
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* @param {NormalRange=} feedback The amount of the effected signal which
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* is fed back through the delay.
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* @example
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* var feedbackDelay = new Tone.FeedbackDelay("8n", 0.5).toMaster();
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* var tom = new Tone.DrumSynth({
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* "octaves" : 4,
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* "pitchDecay" : 0.1
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* }).connect(feedbackDelay);
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* tom.triggerAttackRelease("A2","32n");
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*/
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Tone.FeedbackDelay = function(){
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var options = Tone.defaults(arguments, ["delayTime", "feedback"], Tone.FeedbackDelay);
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Tone.FeedbackEffect.call(this, options);
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/**
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* the delay node
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* @type {Tone.Delay}
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* @private
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*/
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this._delayNode = new Tone.Delay(options.delayTime);
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/**
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* The delayTime of the DelayNode.
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* @type {Time}
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* @signal
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*/
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this.delayTime = this._delayNode.delayTime;
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// connect it up
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this.connectEffect(this._delayNode);
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this._readOnly(["delayTime"]);
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};
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Tone.extend(Tone.FeedbackDelay, Tone.FeedbackEffect);
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/**
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* The default values.
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* @const
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* @static
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* @type {Object}
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*/
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Tone.FeedbackDelay.defaults = {
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"delayTime" : 0.25,
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};
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/**
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* clean up
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* @returns {Tone.FeedbackDelay} this
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*/
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Tone.FeedbackDelay.prototype.dispose = function(){
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Tone.FeedbackEffect.prototype.dispose.call(this);
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this._delayNode.dispose();
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this._delayNode = null;
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this._writable(["delayTime"]);
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this.delayTime = null;
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return this;
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};
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return Tone.FeedbackDelay;
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});
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