# Page Not Found

The URL `6-built-in-effects/6.11-peak-controller` does not exist.

You might be looking for one of these pages:
- [Peak Controller](https://docs.lmms.io/user-manual/effects/peak-controller.md)
- [BassBooster](https://docs.lmms.io/user-manual/effects/bassbooster.md)
- [Dual Filter](https://docs.lmms.io/user-manual/effects/dual-filter.md)
- [Piano Roll](https://docs.lmms.io/user-manual/navigating-lmms/piano-roll.md)
- [Compressor](https://docs.lmms.io/user-manual/effects/compressor.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.lmms.io/user-manual/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.lmms.io/user-manual/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/user-manual/effects/peak-controller.md`)
- Use `Accept: text/markdown` header for content negotiation