mirror of
https://github.com/Tonejs/Tone.js
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75 lines
No EOL
2 KiB
JavaScript
75 lines
No EOL
2 KiB
JavaScript
define(["Tone/core/Tone", "Tone/effect/StereoXFeedbackEffect", "Tone/signal/Signal", "Tone/signal/Multiply"],
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function(Tone){
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"use strict";
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/**
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* @class PingPongDelay is a dual delay effect where the echo is heard
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* first in one channel and next in the opposite channel
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*
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* @constructor
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* @extends {Tone.StereoXFeedbackEffect}
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* @param {Tone.Time|Object} [delayTime=0.25] is the interval between consecutive echos
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*/
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Tone.PingPongDelay = function(){
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var options = this.optionsObject(arguments, ["delayTime"], Tone.PingPongDelay.defaults);
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Tone.StereoXFeedbackEffect.call(this, options);
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/**
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* the delay node on the left side
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* @type {DelayNode}
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* @private
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*/
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this._leftDelay = this.context.createDelay(options.maxDelayTime);
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/**
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* the delay node on the right side
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* @type {DelayNode}
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* @private
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*/
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this._rightDelay = this.context.createDelay(options.maxDelayTime);
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/**
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* the delay time signal
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* @type {Tone.Signal}
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*/
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this.delayTime = new Tone.Signal(options.delayTime, Tone.Signal.Units.Time);
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//connect it up
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this.effectSendL.chain(this._leftDelay, this.effectReturnL);
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this.effectSendR.chain(this._rightDelay, this.effectReturnR);
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this.delayTime.fan(this._leftDelay.delayTime, this._rightDelay.delayTime);
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//rearranged the feedback to be after the leftPreDelay
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this._feedbackRL.disconnect();
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this._feedbackRL.connect(this._leftDelay);
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};
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Tone.extend(Tone.PingPongDelay, Tone.StereoXFeedbackEffect);
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/**
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* @static
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* @type {Object}
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*/
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Tone.PingPongDelay.defaults = {
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"delayTime" : 0.25,
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"maxDelayTime" : 1
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};
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/**
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* clean up
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* @returns {Tone.PingPongDelay} `this`
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*/
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Tone.PingPongDelay.prototype.dispose = function(){
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Tone.StereoXFeedbackEffect.prototype.dispose.call(this);
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this._leftDelay.disconnect();
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this._leftDelay = null;
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this._rightDelay.disconnect();
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this._rightDelay = null;
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this.delayTime.dispose();
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this.delayTime = null;
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return this;
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};
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return Tone.PingPongDelay;
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}); |