> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.lumen5.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Audio enhancement

When you create a talking head video, we automatically apply Dolby.io audio enhancements so your clip sounds the best! Audio enhancement does things like reducing background noise, sharpening speech, and normalizing peaks and lows if the volume changes throughout the clip.

You can find the audio toggle in the transcript tab. Right now audio enhancement is only available for video clips, so you won't see the toggle in the transcript tab of a voiceover video:


![](https://storage.crisp.chat/users/helpdesk/website/926ed4db19dfb800/audio-enhance_1uytn6g.png)