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# AppSchema.AudioEnum

Identifies enum schemas in the audio domain.

```
protocol AudioEnum : AppSchema.Kind
```

## Topics

### Instance Properties

[`var activity: some AppSchemaEnum`](/documentation/AppIntents/AppSchema/AudioEnum/activity)

An enum schema for an activity parameter.

[`var affinityState: some AppSchemaEnum`](/documentation/AppIntents/AppSchema/AudioEnum/affinityState)

An enum schema for an affinity state parameter.

[`var appViewIdentifier: some AppSchemaEnum`](/documentation/AppIntents/AppSchema/AudioEnum/appViewIdentifier)

An enum schema for an app view identifier parameter.

[`var invocationSource: some AppSchemaEnum`](/documentation/AppIntents/AppSchema/AudioEnum/invocationSource)

An enum schema for an invocation source parameter.

[`var playbackAttributes: some AppSchemaEnum`](/documentation/AppIntents/AppSchema/AudioEnum/playbackAttributes)

An enum schema for a playback attributes parameter.

[`var queueInsertionLocation: some AppSchemaEnum`](/documentation/AppIntents/AppSchema/AudioEnum/queueInsertionLocation)

An enum schema for a queue insertion location parameter.

## Relationships

### Inherits From

[`Kind`](/documentation/AppIntents/AppSchema/Kind)

### Conforming Types

[`Enum`](/documentation/AppIntents/AppSchema/Enum)

---

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