---
title: default
framework: realitykit
role: symbol
role_heading: Type Property
path: realitykit/audio/distanceattenuation/default
---

# default

The default distance attenuation, which uses a rolloff model that mimics real-world physics.

## Declaration

```swift
static let `default`: Audio.DistanceAttenuation
```

## Discussion

Discussion The Audio.DistanceAttenuation.rolloff(factor:) model attenuates spatial audio with a factor of 1.0 as the listener moves away from the source.