mirror of
https://github.com/Tonejs/Tone.js
synced 2024-11-17 09:08:10 +00:00
ed71d8141b
no longer using AMD (require.js) style imports, and beginning to move to es6 "import/export" statements everywhere.
87 lines
2.2 KiB
JavaScript
87 lines
2.2 KiB
JavaScript
import Tone from "../core/Tone";
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import "../signal/Add";
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import "../signal/Subtract";
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import "../signal/Signal";
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import "../component/Split";
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import "../core/AudioNode";
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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). <br><br>
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* <code>
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* Mid = (Left+Right)/sqrt(2); // obtain mid-signal from left and right<br>
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* Side = (Left-Right)/sqrt(2); // obtain side-signal from left and righ<br>
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* </code>
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*
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* @extends {Tone.AudioNode}
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* @constructor
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*/
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Tone.MidSideSplit = function(){
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Tone.AudioNode.call(this);
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this.createInsOuts(0, 2);
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/**
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* split the incoming signal into left and right channels
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* @type {Tone.Split}
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* @private
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*/
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this._split = this.input = new Tone.Split();
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/**
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* The mid send. Connect to mid processing. Alias for
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* <code>output[0]</code>
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* @type {Tone.Add}
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*/
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this._midAdd = new Tone.Add();
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/**
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* Multiply the _midAdd by sqrt(1/2)
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* @type {Tone.Multiply}
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*/
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this.mid = this.output[0] = new Tone.Multiply(Math.SQRT1_2);
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/**
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* The side output. Connect to side processing. Also Output 1
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* @type {Tone.Subtract}
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*/
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this._sideSubtract = new Tone.Subtract();
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/**
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* Multiply the _midAdd by sqrt(1/2)
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* @type {Tone.Multiply}
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*/
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this.side = this.output[1] = new Tone.Multiply(Math.SQRT1_2);
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this._split.connect(this._midAdd, 0, 0);
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this._split.connect(this._midAdd, 1, 1);
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this._split.connect(this._sideSubtract, 0, 0);
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this._split.connect(this._sideSubtract, 1, 1);
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this._midAdd.connect(this.mid);
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this._sideSubtract.connect(this.side);
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};
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Tone.extend(Tone.MidSideSplit, Tone.AudioNode);
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/**
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* clean up
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* @returns {Tone.MidSideSplit} this
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*/
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Tone.MidSideSplit.prototype.dispose = function(){
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Tone.AudioNode.prototype.dispose.call(this);
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this.mid.dispose();
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this.mid = null;
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this.side.dispose();
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this.side = null;
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this._midAdd.dispose();
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this._midAdd = null;
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this._sideSubtract.dispose();
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this._sideSubtract = null;
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this._split.dispose();
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this._split = null;
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return this;
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};
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export default Tone.MidSideSplit;
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