---
title: audioSettings
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avassetreaderaudiomixoutput/audiosettings
---

# audioSettings

The audio settings that the output uses.

## Declaration

```swift
var audioSettings: [String : Any]? { get }
```

## Discussion

Discussion The dictionary must contain values for the keys in Linear PCM format settings. Setting the property value to nil indicates that the output returns audio samples in an uncompressed format.

## See Also

### Inspecting an output

- [audioTracks](avfoundation/avassetreaderaudiomixoutput/audiotracks.md)