> **Experimental**
>
> `@aws-cdk/aws-medialive-alpha` is an [**experimental**](/stability) (alpha) package: its API may change in any release, without a major version bump.
# CaptionAccessibility

Whether a caption track implements accessibility features (written descriptions of dialog, music, and sounds).

Signaled in HLS and MediaPackage output groups.

- Stability: [Experimental](/cdk/api/stability.html)
- Source: [`lib/encode-configuration.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0-alpha.0/packages/@aws-cdk/aws-medialive-alpha/lib/encode-configuration.ts#L828)

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import * as medialive_alpha from '@aws-cdk/aws-medialive-alpha';
const captionAccessibility = medialive_alpha.CaptionAccessibility.of('value');
```

## Properties

- `DOES_NOT_IMPLEMENT_ACCESSIBILITY_FEATURES`: [CaptionAccessibility](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.CaptionAccessibility.html) (static) — The captions do not implement accessibility features.

- `IMPLEMENTS_ACCESSIBILITY_FEATURES`: [CaptionAccessibility](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.CaptionAccessibility.html) (static) — The captions implement accessibility features.

- `value`: string — The underlying string value passed to CloudFormation.

## Methods

- `of(value: string): CaptionAccessibility // chainable` (static) — A value not yet modelled by AWS CDK.