> For a complete index of all SignalWire documentation pages, fetch https://signalwire.com/docs/llms.txt

# localAudioLevel$

> Observable of the RMS audio level of the local microphone, 0..1.

```ts
get localAudioLevel$(): Observable<number>
```

Observable of the RMS audio level of the local microphone, 0..1.
Emits at \~30fps while a mic track is active. Engages the local audio
pipeline on first subscription.

## **Examples**

```ts
call.localAudioLevel$.subscribe((localAudioLevel) => {
  console.log('localAudioLevel:', localAudioLevel);
});
```