mirror of
https://github.com/Tonejs/Tone.js
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90 lines
No EOL
2.4 KiB
JavaScript
90 lines
No EOL
2.4 KiB
JavaScript
define(["Tone/core/Tone", "Tone/effect/Effect", "Tone/component/MidSideSplit", "Tone/component/MidSideMerge"],
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function(Tone){
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"use strict";
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/**
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* @class Mid/Side processing separates the the 'mid' signal
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* (which comes out of both the left and the right channel)
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* and the 'side' (which only comes out of the the side channels)
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* and effects them separately before being recombined. <br>
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* Applies a Mid/Side seperation and recombination. <br>
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* http://musicdsp.org/showArchiveComment.php?ArchiveID=173<br>
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* http://www.kvraudio.com/forum/viewtopic.php?t=212587<br>
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* M = (L+R)/sqrt(2); // obtain mid-signal from left and right<br>
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* S = (L-R)/sqrt(2); // obtain side-signal from left and righ<br>
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* // amplify mid and side signal seperately:<br>
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* M/S send/return<br>
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* L = (M+S)/sqrt(2); // obtain left signal from mid and side<br>
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* R = (M-S)/sqrt(2); // obtain right signal from mid and side<br>
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*
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* @extends {Tone.Effect}
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* @constructor
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*/
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Tone.MidSideEffect = function(){
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Tone.Effect.call(this);
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/**
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* The mid/side split
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* @type {Tone.MidSideSplit}
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* @private
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*/
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this._midSideSplit = new Tone.MidSideSplit();
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/**
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* The mid/side merge
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* @type {Tone.MidSideMerge}
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* @private
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*/
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this._midSideMerge = new Tone.MidSideMerge();
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/**
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* The mid send. Connect to mid processing
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* @type {Tone.Expr}
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*/
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this.midSend = this._midSideSplit.mid;
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/**
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* The side send. Connect to side processing
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* @type {Tone.Expr}
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*/
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this.sideSend = this._midSideSplit.side;
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/**
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* The mid return connection
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* @type {GainNode}
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*/
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this.midReturn = this._midSideMerge.mid;
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/**
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* The side return connection
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* @type {GainNode}
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*/
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this.sideReturn = this._midSideMerge.side;
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//the connections
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this.effectSend.connect(this._midSideSplit);
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this._midSideMerge.connect(this.effectReturn);
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};
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Tone.extend(Tone.MidSideEffect, Tone.Effect);
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/**
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* clean up
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* @returns {Tone.MidSideEffect} `this`
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*/
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Tone.MidSideEffect.prototype.dispose = function(){
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Tone.Effect.prototype.dispose.call(this);
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this._midSideSplit.dispose();
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this._midSideSplit = null;
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this._midSideMerge.dispose();
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this._midSideMerge = null;
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this.midSend = null;
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this.sideSend = null;
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this.midReturn = null;
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this.sideReturn = null;
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return this;
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};
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return Tone.MidSideEffect;
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}); |