sound on FreeBSD 14.0-CURRENT

Hi,

I am running FreeBSD 14.0-CURRENT #0 main-n250646-c0525ab1d1c-dirty: Sat Nov 13 16:42:44 CET 2021
Here is the output from:
cat /dev/sndstat 
Installed devices:
pcm0: <Realtek ALC285 (Analog)> (play/rec) default
pcm1: <Realtek ALC285 (Left Analog Headphones)> (play)
pcm2: <Intel Kaby Lake (HDMI/DP 8ch)> (play)
Installed devices from userspace:
dsp: <Virtual OSS> (play/rec)
vdsp: <Virtual OSS> (play/rec)

I am running:
/usr/local/sbin/virtual_oss -B -D /var/run/virtual_oss/dsp.pid -T /dev/sndstat -S -i 8 -C 18 -c 18 -r 48000 -b 32 -s 512 -f /dev/dsp0 -c 2 -d dsp -c 18 -d vdsp -t vdsp.ctl

I am not able to redirect to different output even if I try for example:

sysctl hw.snd.default_unit=1


Please see the attached output from: sysctl dev.pcm, sysctl hw.snd and
dmesg.

I did not find any hint how to redirect the sound output to the different
device except hw.snd.default_unit. The output remains in the default
output. Am I missing something or doing something wrong?

Regards,

lk