reset sound after suspend to memory (deep sleep)

[JGkn]

K, that's probably where the problem lies - my script is geared towards PulseAudio and does not have any provisions for PipeWire. [...]

I tried it out now. Unfortunately there is no success for me.

As far as I (with my limited experience) can see, the pipewire-services still run in user-context, so I am able to stop them with
DBUS_SESSION_BUS_ADDRESS="$bus_addr" sudo -u $user -E /bin/systemctl --user stop pipewire*
in an adapted script or directly from terminal.
This makes the sound tray-icon crossed out.

The output of
lsof /dev/snd
is emtpy (if I do the chmod 000 /dev/snd/pcm...* or not).

But
echo "1-0011" > /sys/bus/i2c/drivers/es8316/unbind
always gives me an
Speicherzugriffsfehler (Speicherabzug geschrieben) = Memory access error (memory dump written)
no matter if called via script or directly in terminal.

It is not possible to do the bind-command after that.
(sudo echo "1-0011" > /sys/bus/i2c/drivers/es8316/bind
from usercontext makes "no permission" and 
sudo -s
echo "1-0011" > /sys/bus/i2c/drivers/es8316/bind
puts out "echo: Write error: No matching device found"

Maybe something changed behind the scenes since you made your script..?
Thanks for your help anyway.