I recently had a buzzy sound on my speaker and this didn’t fix out even after playing with sound volume. The best solution for audio problem is either alsa mixer which is a inbuilt audio controller. But if it is not installed you can simply install it through
this website: https://www.linuxquestions.org/questions/linux-software-2/alsa-equalizer-for-fedora-4175497111/
I guess pauv controller is inbuilt now a days
next is pluse audio which is also easy to install
sudo dnf install pulseaudio-equalizer
or
sudo apt install pulseaudio-equalizer
go play with the equalizer yourself and fix your problem
I hope this will fix your audio problem 