---
title: metadata
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avcaptureaudiofileoutput/metadata
---

# metadata

A collection of metadata to be written to the receiver’s output files.

## Declaration

```swift
var metadata: [AVMetadataItem] { get set }
```

## Discussion

Discussion The value of this property is an array of AVMetadataItem objects representing the collection of top-level metadata to be written in each output file. Only ID3 v2.2, v2.3, or v2.4 style metadata items are supported.

## See Also

### Configuring output

- [audioSettings](avfoundation/avcaptureaudiofileoutput/audiosettings.md)