tone
Version:
A Web Audio framework for making interactive music in the browser.
47 lines • 1.72 kB
JavaScript
import { Delay } from "../core/context/Delay";
import { optionsFromArguments } from "../core/util/Defaults";
import { readOnly } from "../core/util/Interface";
import { FeedbackEffect } from "./FeedbackEffect";
/**
* FeedbackDelay is a DelayNode in which part of output signal is fed back into the delay.
*
* @param delayTime The delay applied to the incoming signal.
* @param feedback The amount of the effected signal which is fed back through the delay.
* @example
* const feedbackDelay = new Tone.FeedbackDelay("8n", 0.5).toDestination();
* const tom = new Tone.MembraneSynth({
* octaves: 4,
* pitchDecay: 0.1
* }).connect(feedbackDelay);
* tom.triggerAttackRelease("A2", "32n");
* @category Effect
*/
export class FeedbackDelay extends FeedbackEffect {
constructor() {
super(optionsFromArguments(FeedbackDelay.getDefaults(), arguments, ["delayTime", "feedback"]));
this.name = "FeedbackDelay";
const options = optionsFromArguments(FeedbackDelay.getDefaults(), arguments, ["delayTime", "feedback"]);
this._delayNode = new Delay({
context: this.context,
delayTime: options.delayTime,
maxDelay: options.maxDelay,
});
this.delayTime = this._delayNode.delayTime;
// connect it up
this.connectEffect(this._delayNode);
readOnly(this, "delayTime");
}
static getDefaults() {
return Object.assign(FeedbackEffect.getDefaults(), {
delayTime: 0.25,
maxDelay: 1,
});
}
dispose() {
super.dispose();
this._delayNode.dispose();
this.delayTime.dispose();
return this;
}
}
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