Problems with `pactl load-module module-loopback'

[Rodolfo Medina <rodolfo.medina@gmail.com>]

Hi all.

Without pipewire I didn't manage to pair and connect my bluetooth
headset/microphone to my Debian 12 so I installed pipewire while pulseaudio was
already there.  So now both pulseaudio and pipewire are installed.  Now when I
do:

 $ pactl load-module module-loopback latency_msec=5

a terrible noise suddenly comes, and if I want to stop it with

 $ pactl exit

I get the error message `exit failure: connection refused'.  I searched around
but didn't find so far any solution.  Please help whoever can.

Thanks in advance,

Rodolfo