How to isolate/figure out whispers in audio clip?

[grarpamp]

> a general damp of everything left and right

A similar kit is a 1/3rd octave (aka 31 band) equalizer.
PEQ's gave you centers that you can move around and
maybe select the shape among a couple settings,
and two or three cheap PEQ's were sometimes built
into the fixed center EQ units, or from the same maker.
The 31's analog function has also been emulated with
digital / software tools. DJ forums are another place to
look for the SW tools, but DJ stuff is often not free
opensource.

https://en.wikipedia.org/wiki/Rhythmbox
https://ubuntustudio.org/
https://lsp-plug.in/
https://github.com/TheBigW/ParametricEQ

http://cefiso.blogspot.com/2016/09/basic-guide-to-understanding-audio.html

https://img.canuckaudiomart.com/uploads/large/1283387-a91d094c-sae-2800-solid-state-stereo-parametric-equalizer-like-new.jpg
https://static.kvraudio.com/i/b/para_equalizer_x32_ms.png