---
title: sourceDirectivityModelParameters
framework: phase
role: symbol
role_heading: Instance Property
path: phase/phasespatialmixerdefinition/sourcedirectivitymodelparameters
---

# sourceDirectivityModelParameters

A data set that directs sound such that it’s louder when directed at the listener.

## Declaration

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

## Discussion

Discussion The framework applies directivity to sound sources that emanate from a point.

## See Also

### Configuring Directivity

- [listenerDirectivityModelParameters](phase/phasespatialmixerdefinition/listenerdirectivitymodelparameters.md)