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# defaultAudioConstraints

> Default audio track constraints applied when no explicit constraints are provided.

```ts
get defaultAudioConstraints(): MediaTrackConstraints | undefined
set defaultAudioConstraints(value: MediaTrackConstraints | undefined)
```

Default audio track constraints applied when no explicit constraints are provided.

## **Parameters**

**`value`** `MediaTrackConstraints | undefined`

Default constraints applied when capturing audio input. Pass `undefined` to clear. See [`MediaTrackConstraints`](https://developer.mozilla.org/en-US/docs/Web/API/MediaTrackConstraints).

---

## **Examples**

```ts
// Read
console.log(client.preferences.defaultAudioConstraints);

// Write
client.preferences.defaultAudioConstraints = { echoCancellation: true };
```

> Default audio track constraints applied when no explicit constraints are provided.