---
title: preferredPolarPattern
framework: avfaudio
role: symbol
role_heading: Instance Property
path: avfaudio/avaudiosessiondatasourcedescription/preferredpolarpattern
---

# preferredPolarPattern

The preferred directivity configuration for the data source.

## Declaration

```swift
var preferredPolarPattern: AVAudioSession.PolarPattern? { get }
```

## Discussion

Discussion If this value is nil, the data source doesn’t support directivity configuration, or you haven’t selected a preferred polar pattern.

## See Also

### Configuring Microphone Directivity

- [selectedPolarPattern](avfaudio/avaudiosessiondatasourcedescription/selectedpolarpattern.md)
- [supportedPolarPatterns](avfaudio/avaudiosessiondatasourcedescription/supportedpolarpatterns.md)
- [setPreferredPolarPattern(_:)](avfaudio/avaudiosessiondatasourcedescription/setpreferredpolarpattern(_:).md)
- [AVAudioSession.PolarPattern](avfaudio/avaudiosession/polarpattern.md)