Can't enable Spitfish, and other de-esser questions

I think this is the last known good posting for De Esser.

https://forum.audacityteam.org/t/updated-de-clicker-and-new-de-esser-for-speech/34283/1

Go > Applications > Audacity Plugins

Dump the .ny in that folder. Restart Audacity. Effect > Add Remove Plugins > DeEsser.

That page has an extensive tutorial on how to use it. I only used it in the default values and I never got good at it.

Who shot your guest? Did they by any chance use a USB microphone and then apply very stern noise reduction? Did they save a WAV of the shoot before they applied any corrections?

Koz