Help needed cleaning screeches/peaks from voice recording

Audacity 3 Help Forum Windows
4

Here’s a method using Audacity only, ( you’ll need to add the “median” plugin) …
Repair clipping using 'median' filter#.gif
The text you need to paste in the Nyquist Prompt is …

(multichan-expand #'slope s)

(“Nyquist Prompt” is in Audacity’s effect menu).