> Fetch clean Markdown by appending `.md` to any page URL under https://signalwire.com/docs or requesting it with the HTTP header `Accept: text/markdown`. The root index at https://signalwire.com/docs/llms.txt lists the available documentation indexes.

# echoCancellation$

> Observable indicating whether echo cancellation is enabled.

```ts
get echoCancellation$(): Observable<boolean | undefined>
```

Observable indicating whether echo cancellation is enabled.

#### Inherited from

[`Participant`](/docs/browser-sdk/v4/reference/participant).[`echoCancellation$`](/docs/browser-sdk/v4/reference/participant#echocancellation-1)

## echoCancellation

```ts
get echoCancellation(): boolean
```

Whether echo cancellation is enabled.

#### Inherited from

[`Participant`](/docs/browser-sdk/v4/reference/participant).[`echoCancellation`](/docs/browser-sdk/v4/reference/participant#echocancellation)

## **Examples**

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

> Observable indicating whether echo cancellation is enabled.