---
title: AVAudioEnvironmentDistanceAttenuationModel
framework: avfaudio
role: symbol
role_heading: Enumeration
path: avfaudio/avaudioenvironmentdistanceattenuationmodel
---

# AVAudioEnvironmentDistanceAttenuationModel

Types of distance attenuation models.

## Declaration

```swift
enum AVAudioEnvironmentDistanceAttenuationModel
```

## Overview

Overview Distance attenuation is the natural attenuation of sound when traveling from the source to the listener. The different attenuation models describe the drop-off in gain as the source moves away from the listener.

## Topics

### Attenuation Models

- [AVAudioEnvironmentDistanceAttenuationModel.exponential](avfaudio/avaudioenvironmentdistanceattenuationmodel/exponential.md)
- [AVAudioEnvironmentDistanceAttenuationModel.inverse](avfaudio/avaudioenvironmentdistanceattenuationmodel/inverse.md)
- [AVAudioEnvironmentDistanceAttenuationModel.linear](avfaudio/avaudioenvironmentdistanceattenuationmodel/linear.md)

### Initializers

- [init(rawValue:)](avfaudio/avaudioenvironmentdistanceattenuationmodel/init(rawvalue:).md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Getting and Setting the Attenuation Model

- [distanceAttenuationModel](avfaudio/avaudioenvironmentdistanceattenuationparameters/distanceattenuationmodel.md)