# AUDIO_EVENT_BACKEND

`import { AUDIO_EVENT_BACKEND } from "destack:audio/binding";`

Subscribe to backend availability events.

```ds title="AUDIO_EVENT_BACKEND"
const AUDIO_EVENT_BACKEND: AudioEventFlags
```

[language/library/src/audio/binding/event.ds:26](https://github.com/destack-sh/destack/blob/main/language/library/src/audio/binding/event.ds#L26)