---
title: roll
framework: avfaudio
role: symbol
role_heading: Instance Property
path: avfaudio/avaudio3dangularorientation/roll
---

# roll

The tilt of the listener’s head.

## Declaration

```swift
var roll: Float
```

## Discussion

Discussion The roll axis describes the tilt of the listener’s head, and is perpendicular to the other two axes. Its origin is at the center of the listener’s head and points toward the listener’s nose. A positive roll is to the right going from 0 to 180 degrees. A negative roll is to the left going from 0 to -180 degrees.

## See Also

### Getting Angular Orientation Properties

- [yaw](avfaudio/avaudio3dangularorientation/yaw.md)
- [pitch](avfaudio/avaudio3dangularorientation/pitch.md)