> ## Documentation Index
> Fetch the complete documentation index at: https://docs.orisu.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Add Sound Effects

> Add AI-generated sound effects to a video.

Add Sound Effects generates sound effects for a video and returns the video with audio added. An optional description steers the effects.

This node runs on a selectable model and consumes credits when it runs.

## When to use

* Social video polish
* Product demos
* Creative edits

## Inputs

<ParamField body="Video" type="video" required>
  The video to add sound effects to. Required. Supports loop mode.
</ParamField>

<ParamField body="Description" type="text">
  An optional description to guide the generated effects. Supports loop mode.
</ParamField>

## Outputs

<ParamField body="Video" type="video">
  The video with sound effects added.
</ParamField>

## Configuration

<ParamField body="duration" type="number" default={null}>
  Length of the generated effects in seconds. Leave unset to match the video.
</ParamField>

<ParamField body="startOffset" type="number" default={0}>
  Offset in seconds where the effects begin.
</ParamField>

<Note>
  This node runs on a selectable model. See [Audio models](/models/audio) for supported models and [Model settings](/models/settings) for available options.
</Note>