Sound used to work fine until yesterday Feb 3 zypper update.
Today after boot the sound configuration was non-existent.
After yast2 sound Quick configuration the test sound produces no output.
Set all volume controls to max. No improvement.
Reboot doesn't help. Repeatedly deleting and recreating
the sound configuration with yast2 in various ways doesn't help.
When an application like aplay, audacious tries to play a sound it hangs.

yast2 sound configuration info.
100 Series/C230 Series Chipset Family HD Audio Controller
Configured as sound card number 0
Driver snd-hda-intel

PulseAudio is enabled.
aplay just hangs until it timeouts:

$ ll /usr/share/sounds/purple/alert.wav
-rw-r--r-- 1 root root 23314 May  9  2022 /usr/share/sounds/purple/alert.wav
$ aplay /usr/share/sounds/purple/alert.wav
Playing WAVE '/usr/share/sounds/purple/alert.wav' : Signed 16 bit Little
Endian, Rate 22050 Hz, Mono
ALSA lib pcm_pulse.c:758:(pulse_prepare) PulseAudio: Unable to create stream:
Timeout

aplay: set_params:1416: Unable to install hw params:
ACCESS:  RW_INTERLEAVED
FORMAT:  S16_LE
SUBFORMAT:  STD
SAMPLE_BITS: 16
FRAME_BITS: 16
CHANNELS: 1
RATE: 22050
PERIOD_TIME: 125000
PERIOD_SIZE: (2756 2757)
PERIOD_BYTES: (5512 5513)
PERIODS: 4
BUFFER_TIME: 500000
BUFFER_SIZE: 11025
BUFFER_BYTES: 22050
TICK_TIME: [0 0]