---
title: listenerDirectivityModelParameters
framework: phase
role: symbol
role_heading: Instance Property
path: phase/phasespatialmixerdefinition/listenerdirectivitymodelparameters
---

# listenerDirectivityModelParameters

A data set that determines how well the listener hears depending on its direction relative to a sound source.

## Declaration

```swift
var listenerDirectivityModelParameters: PHASEDirectivityModelParameters? { get set }
```

## Discussion

Discussion An app can configure this property to attenuate sound to the sides of the listener while leaving sound in front of or behind the listener unchanged.

## See Also

### Configuring Directivity

- [sourceDirectivityModelParameters](phase/phasespatialmixerdefinition/sourcedirectivitymodelparameters.md)