darkserge
As I said I think you need this line
load-module module-alsa-source device=hw:0,7
added to a conf file for example /etc/modprobe.d/alsa-base.conf
You can use nano to create and edit it.
sudo nano /etc/modprobe.d/alsa-base.conf
and what Axios has said.
You can always uninstall Pules Audio later if another method is found using wireplumber.
This may also take a couple of reboots to take affect. I tried all things but nothing seemed to work then boom it was their in the pavucontol so I selected it in there as the default and its worked ever since.
I am not sure why our Asus devices seem to have so much trouble with the mic's.