> ## Documentation Index
> Fetch the complete documentation index at: https://docs.daily.co/llms.txt
> Use this file to discover all available pages before exploring further.

# isLocalAudioLevelObserverRunning()

> Returns whether the local audio level observer is currently active.

`isLocalAudioLevelObserverRunning()`

<Badge color="green">{"✓"} Prebuilt</Badge> <Badge color="green">{"✓"} Custom</Badge>

Returns `true` if [`startLocalAudioLevelObserver()`](/reference/daily-js/instance-methods/start-local-audio-level-observer) has been called and the observer is currently active.

## Return value

Returns `boolean`.

## Example

```javascript theme={null}
if (!call.isLocalAudioLevelObserverRunning()) {
  await call.startLocalAudioLevelObserver(100);
}
```

## See also

<CardGroup>
  <Card title="Methods" icon="code" iconType="solid">
    * [startLocalAudioLevelObserver()](/reference/daily-js/instance-methods/start-local-audio-level-observer)
    * [stopLocalAudioLevelObserver()](/reference/daily-js/instance-methods/stop-local-audio-level-observer)
    * [getLocalAudioLevel()](/reference/daily-js/instance-methods/get-local-audio-level)
  </Card>

  <Card title="Events" icon="bolt" iconType="solid">
    * [local-audio-level](/reference/daily-js/events/media-events#local-audio-level)
  </Card>
</CardGroup>