# AudioListenerComponentSystem

Class · extends [`ComponentSystem`](https://api.playcanvas.com/engine/classes/ComponentSystem.md) · category: Sound

Source: https://github.com/playcanvas/engine/blob/f059dc005842f76e052cdf44d8370c8c7ec475ac/src/framework/components/audio-listener/system.js#L16

Manages the [AudioListenerComponent](https://api.playcanvas.com/engine/classes/AudioListenerComponent.md)s of an application. Reach it through
`app.systems.audiolistener`; components are created with [Entity#addComponent](https://api.playcanvas.com/engine/classes/Entity.md#addcomponent), never by
calling the system directly.

## Inherited from [ComponentSystem](https://api.playcanvas.com/engine/classes/ComponentSystem.md)

- `fire(name: string, arg1?: any, arg2?: any, arg3?: any, arg4?: any, arg5?: any, arg6?: any, arg7?: any, arg8?: any): EventHandler`
- `hasEvent(name: string): boolean`
- `off(name?: string, callback?: HandleEventCallback, scope?: any): EventHandler`
- `on(name: string, callback: HandleEventCallback, scope?: any): EventHandle`
- `once(name: string, callback: HandleEventCallback, scope?: any): EventHandle`