One change in FreeBSD 14.0 is that the motherboard console bell is
disabled by default. I found that this change also disabled XBell,
so X11 applications including xterm, Emacs, and even xkbbell -f no
longer beeped.

Fortunately, the release notes said how to turn it back on
("sysctl kern.vt.enable_bell=1" and "kbdcontrol -b normal")
and that worked, including for the X11 applications.

The release notes also say:

The default bell tone is now 800Hz. It can be set with
kbdcontrol(1) again. There is integration with devd(8) for
people wishing to use their sound cards for the beep.
[links: ba48d52ca6c8 4ac3d08a9693 2533eca1c2b9]

I'm perfectly willing to have a sound card sound instead of the
motherboard speaker beep, but apparently I'm missing something.

Do I need to set up something somewhere to recieve the beep request and
write to /dev/audio? devd is running, and there's a /dev/audio that
works.

TIA,
-WBE