---
title: ExtAudioFilePropertyID
framework: audiotoolbox
role: symbol
role_heading: Type Alias
path: audiotoolbox/extaudiofilepropertyid
---

# ExtAudioFilePropertyID

An audio file object property identifier.

## Declaration

```swift
typealias ExtAudioFilePropertyID = UInt32
```

## See Also

### Data Types

- [ExtAudioFilePacketTableInfoOverride](audiotoolbox/extaudiofilepackettableinfooverride.md)
- [ExtAudioFileRef](audiotoolbox/extaudiofileref.md)