mirror of
https://github.com/Tonejs/Tone.js
synced 2024-11-16 08:38:00 +00:00
91 lines
No EOL
2.5 KiB
JavaScript
91 lines
No EOL
2.5 KiB
JavaScript
define(["Tone/core/Tone", "Tone/effect/StereoXFeedbackEffect", "Tone/signal/Signal"],
|
|
function(Tone){
|
|
|
|
"use strict";
|
|
|
|
/**
|
|
* @class PingPongDelay is a dual delay effect where the echo is heard
|
|
* first in one channel and next in the opposite channel
|
|
*
|
|
* @constructor
|
|
* @extends {Tone.StereoXFeedbackEffect}
|
|
* @param {Time|Object} [delayTime=0.25] is the interval between consecutive echos
|
|
* @param {number=} feedback The amount of the effected signal which
|
|
* is fed back through the delay.
|
|
* @example
|
|
* var pingPong = new Tone.PingPongDelay("4n", 0.2);
|
|
*/
|
|
Tone.PingPongDelay = function(){
|
|
|
|
var options = this.optionsObject(arguments, ["delayTime", "feedback"], Tone.PingPongDelay.defaults);
|
|
Tone.StereoXFeedbackEffect.call(this, options);
|
|
|
|
/**
|
|
* the delay node on the left side
|
|
* @type {DelayNode}
|
|
* @private
|
|
*/
|
|
this._leftDelay = this.context.createDelay(options.maxDelayTime);
|
|
|
|
/**
|
|
* the delay node on the right side
|
|
* @type {DelayNode}
|
|
* @private
|
|
*/
|
|
this._rightDelay = this.context.createDelay(options.maxDelayTime);
|
|
|
|
/**
|
|
* the predelay on the right side
|
|
* @type {DelayNode}
|
|
* @private
|
|
*/
|
|
this._rightPreDelay = this.context.createDelay(options.maxDelayTime);
|
|
|
|
/**
|
|
* the delay time signal
|
|
* @type {Time}
|
|
* @signal
|
|
*/
|
|
this.delayTime = new Tone.Signal(options.delayTime, Tone.Type.Time);
|
|
|
|
//connect it up
|
|
this.effectSendL.chain(this._leftDelay, this.effectReturnL);
|
|
this.effectSendR.chain(this._rightPreDelay, this._rightDelay, this.effectReturnR);
|
|
this.delayTime.fan(this._leftDelay.delayTime, this._rightDelay.delayTime, this._rightPreDelay.delayTime);
|
|
//rearranged the feedback to be after the rightPreDelay
|
|
this._feedbackLR.disconnect();
|
|
this._feedbackLR.connect(this._rightDelay);
|
|
this._readOnly(["delayTime"]);
|
|
};
|
|
|
|
Tone.extend(Tone.PingPongDelay, Tone.StereoXFeedbackEffect);
|
|
|
|
/**
|
|
* @static
|
|
* @type {Object}
|
|
*/
|
|
Tone.PingPongDelay.defaults = {
|
|
"delayTime" : 0.25,
|
|
"maxDelayTime" : 1
|
|
};
|
|
|
|
/**
|
|
* clean up
|
|
* @returns {Tone.PingPongDelay} `this`
|
|
*/
|
|
Tone.PingPongDelay.prototype.dispose = function(){
|
|
Tone.StereoXFeedbackEffect.prototype.dispose.call(this);
|
|
this._leftDelay.disconnect();
|
|
this._leftDelay = null;
|
|
this._rightDelay.disconnect();
|
|
this._rightDelay = null;
|
|
this._rightPreDelay.disconnect();
|
|
this._rightPreDelay = null;
|
|
this._writable(["delayTime"]);
|
|
this.delayTime.dispose();
|
|
this.delayTime = null;
|
|
return this;
|
|
};
|
|
|
|
return Tone.PingPongDelay;
|
|
}); |