@babylonjs/core
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JavaScript
import { AbstractNamedAudioNode } from "./abstractAudioNode.js";
import { _GetVolumeAudioProperty, _GetVolumeAudioSubNode } from "./subNodes/volumeAudioSubNode.js";
import { _AudioAnalyzer } from "./subProperties/audioAnalyzer.js";
/**
* Abstract class representing a sound in the audio engine.
*/
export class AbstractSoundSource extends AbstractNamedAudioNode {
constructor(name, engine, nodeType = 2 /* AudioNodeType.HAS_OUTPUTS */) {
super(name, engine, nodeType);
this._analyzer = null;
this._outBus = null;
this._onOutBusDisposed = () => {
this._outBus = null;
};
}
/**
* The analyzer features of the sound.
*/
get analyzer() {
return this._analyzer ?? (this._analyzer = new _AudioAnalyzer(this._subGraph));
}
/**
* The output bus for the sound.
* @see {@link AudioEngineV2.defaultMainBus}
*/
get outBus() {
return this._outBus;
}
set outBus(outBus) {
if (this._outBus === outBus) {
return;
}
if (this._outBus) {
this._outBus.onDisposeObservable.removeCallback(this._onOutBusDisposed);
if (!this._disconnect(this._outBus)) {
throw new Error("Disconnect failed");
}
}
this._outBus = outBus;
if (this._outBus) {
this._outBus.onDisposeObservable.add(this._onOutBusDisposed);
if (!this._connect(this._outBus)) {
throw new Error("Connect failed");
}
}
}
/**
* The output volume of the sound.
*/
get volume() {
return _GetVolumeAudioProperty(this._subGraph, "volume");
}
set volume(value) {
// The volume subnode is created on initialization and should always exist.
const node = _GetVolumeAudioSubNode(this._subGraph);
if (!node) {
throw new Error("No volume subnode");
}
node.volume = value;
}
/**
* Releases associated resources.
*/
dispose() {
super.dispose();
this._analyzer?.dispose();
this._analyzer = null;
this._outBus = null;
}
}
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