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# PHASENormalizationMode

Options that determine whether the framework adjusts a sound asset’s loudness for the user’s output device.

```
enum PHASENormalizationMode
```

## Overview

Different output devices feature loudness characteristics that require the audio engine to adjust the volume of the input audio to achieve a consistent listening experience across devices.

PHASE callibrates sound asset and stream loudness automatically when the app chooses [`PHASENormalizationMode.dynamic`](/documentation/PHASE/PHASENormalizationMode/dynamic). If an app chooses [`PHASENormalizationMode.none`](/documentation/PHASE/PHASENormalizationMode/none), the app needs to implement custom loudness normalizaton manually, by adjusting sound asset and stream signal strength for the user’s output device.

## Topics

### Loudness Normalization Modes

[`case dynamic`](/documentation/PHASE/PHASENormalizationMode/dynamic)

A mode that instructs the framework to adjust a sound’s volume according to the user’s output device.

[`case none`](/documentation/PHASE/PHASENormalizationMode/none)

A mode that instructs the framework not to adjust a sound’s volume according to the user’s output device.

### Initializers

[`init?(rawValue: Int)`](/documentation/PHASE/PHASENormalizationMode/init(rawValue:))

## Relationships

### Conforms To

[`Sendable`](/documentation/Swift/Sendable)

[`Hashable`](/documentation/Swift/Hashable)

[`Equatable`](/documentation/Swift/Equatable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

---

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