---
title: gain
framework: usd
role: article
role_heading: Article
path: usd/gain
---

# gain

A value that controls the audio volume.

## Overview

Overview The runtime multiplies this value by the incoming audio to produce the output signal. An asset may use this action to raise or lower the audio’s original volume. The default value of 1.0 matches the audio’s original volume. The runtime clamps negative values to 0.0, which mutes the audio. Declaration uniform double gain = 1.0

## See Also

### Properties

- [info:id](usd/info-id.md)
- [affectedObjects](usd/affectedobjects.md)
- [audio](usd/audio.md)
- [type](usd/type.md)
- [auralMode](usd/auralmode.md)