---
title: ToolRouter — Agent Use Case Guide
description: Step-by-step guide for completing a task with a specific AI agent using ToolRouter.
url: https://toolrouter.com/tools/video-editor/use-cases/add-background-music/openclaw
---
# How to Add Background Music with OpenClaw

OpenClaw automates background music mixing across multiple videos with consistent volume settings. Define your audio mixing parameters once -- ducking levels, fade durations, volume targets -- and apply them across an entire video library in one batch operation. This systematic approach ensures uniform audio quality across all your published content.

## Setup

openclaw mcp add toolrouter -- npx -y toolrouter-mcp

## Steps

1. Connect ToolRouter: openclaw mcp add toolrouter -- npx -y toolrouter-mcp
2. Provide the video and track: "Add background music to this marketing video"
3. OpenClaw layers and balances the audio
4. Adjust: "Add audio ducking during the voiceover sections"
5. Finalize the video with polished audio mixing

## Example Prompt

```
Add this energetic background track to my marketing video. Auto-duck during voiceover, full volume during transitions. Add 3-second fade-in and 5-second fade-out. Export at original quality.
```

## Tips

- Batch-add music to multiple videos with consistent volume settings
- Specify ducking parameters for professional-sounding audio mixes
- Ask OpenClaw to create versions with different music tracks for A/B testing
