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

# Sound Effects

> Generate AI sound effects with ElevenLabs, MMAudio, or Stability AI, or import your own clips to punch up transitions and key moments in your videos.

## Overview

Benefits of adding sound effects to your video:

* **Grabs attention** – Sharp sounds can hook viewers in the first second.
* **Emphasizes actions** – Makes edits, transitions, or gestures feel more impactful.
* **Enhances comedy** – Well-timed effects make jokes land harder and funnier.
* **Builds atmosphere** – Adds texture and depth to otherwise quiet or flat moments.
* **Improves pacing** – Gives rhythm to scenes and helps guide the viewer’s focus.
* **Boosts storytelling** – Reinforces key moments and emotions without needing dialogue.
* **Feels more professional** – Sound design adds polish and production value.

## How It Works

### Generate Sound Effects

<Frame>
  <img height="200" src="https://mintcdn.com/captions/ygkgcorr60-_3vsw/help/src/img/ai-sounds.jpg?fit=max&auto=format&n=ygkgcorr60-_3vsw&q=85&s=976d46c985384af090d36a580afe7895" alt="Captions AI Sound Effects generator for adding sound effects to a video" data-path="help/src/img/ai-sounds.jpg" />
</Frame>

To generate a sound:

1. Select **Sounds**
2. Select **Generate**
3. Enter your prompt (eg., upbeat jazz)

### Import Sound Effects

To add sound effects from your device:

1. Tap **Sounds**
2. Tap **Import**

<Tip>
  Youc an choose to Import a sound from files or Import a sound from an existing Captions project.
</Tip>

<Frame>
  <img height="200" src="https://mintcdn.com/captions/ygkgcorr60-_3vsw/help/src/img/ai-sounds-import.jpg?fit=max&auto=format&n=ygkgcorr60-_3vsw&q=85&s=879f6dd671f6b04b124ddaf15d8bbd84" alt="Captions app showing how to import a custom sound effect into a project" data-path="help/src/img/ai-sounds-import.jpg" />
</Frame>

### Edit Sound Effects

To edit sounds, choose from the following options:

* To move the location of a sound, use one finger to drag the sound to a new location
* To adjust the volume of a sound, tap on the sound track
* To delete a sound, tap **Delete**

### Frequently Asked Questions

<AccordionGroup>
  <Accordion title="Why were sound effects added automatically and how do I get rid of them?">
    Some transitions have sounds automatically applied. You can remove them by tapping on **Sounds** on the main navigation.
  </Accordion>

  <Accordion title="Available integrations with AI models for generating sound effects">
    For generating sound effects, Captions supports 3 integrations with different AI models:

    * Sound Effects (ElevenLabs)
    * MMAudio (MMAudio)
    * Stable Audio Open (Stability AI)
  </Accordion>
</AccordionGroup>