tone
Version:
A Web Audio framework for making interactive music in the browser.
52 lines • 2.09 kB
JavaScript
import { ToneAudioNode } from "../../core/context/ToneAudioNode";
import { Compressor } from "./Compressor";
import { optionsFromArguments } from "../../core/util/Defaults";
import { MidSideSplit } from "../channel/MidSideSplit";
import { MidSideMerge } from "../channel/MidSideMerge";
import { readOnly } from "../../core/util/Interface";
/**
* MidSideCompressor applies two different compressors to the [[mid]]
* and [[side]] signal components of the input. See [[MidSideSplit]] and [[MidSideMerge]].
* @category Component
*/
export class MidSideCompressor extends ToneAudioNode {
constructor() {
super(Object.assign(optionsFromArguments(MidSideCompressor.getDefaults(), arguments)));
this.name = "MidSideCompressor";
const options = optionsFromArguments(MidSideCompressor.getDefaults(), arguments);
this._midSideSplit = this.input = new MidSideSplit({ context: this.context });
this._midSideMerge = this.output = new MidSideMerge({ context: this.context });
this.mid = new Compressor(Object.assign(options.mid, { context: this.context }));
this.side = new Compressor(Object.assign(options.side, { context: this.context }));
this._midSideSplit.mid.chain(this.mid, this._midSideMerge.mid);
this._midSideSplit.side.chain(this.side, this._midSideMerge.side);
readOnly(this, ["mid", "side"]);
}
static getDefaults() {
return Object.assign(ToneAudioNode.getDefaults(), {
mid: {
ratio: 3,
threshold: -24,
release: 0.03,
attack: 0.02,
knee: 16
},
side: {
ratio: 6,
threshold: -30,
release: 0.25,
attack: 0.03,
knee: 10
}
});
}
dispose() {
super.dispose();
this.mid.dispose();
this.side.dispose();
this._midSideSplit.dispose();
this._midSideMerge.dispose();
return this;
}
}
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