Re: 14.1: /dev/audio gone? Is there a replacement?

On Thu, 13 Jun 2024 11:07:09 -0400, Winston wrote:

Hi,

SUMMARY:
 
After upgrading to 14.1, it looks like /dev/audio is gone.
Maybe this is some side effect of the "hot un/plugging" changes to audio
that wasn't mentioned in the Release Notes?
 
I used to be able to do "cp somesound.au /dev/audio".
What, if anything, is the replacement?
 
DETAILS:
 
The boot-up messages in the log file show the device uaudio0 getting
discovered just as before.  The only log file difference I see is that
"pcm0: <USB audio> on uaudio0" has changed to "pcm0: on uaudio0".
I see no audio*, uaudio*, nor pcm* in /dev now, though.
 
1) /dev/dsp0 isn't an instant substitute:
   "cp somesound.au /dev/dsp0" sounds like both the wrong speed and the
   volume cranked up well past distortion level.
 
2) "out123 -m -r 8000 --speed .5 -P -6 somesound.au" sounds like maybe
   something like this could be made to work if I could find all the
   right options, but the result so far is horribly noisy.  [The .au
   file I'm trying to play is sample rate 8000 mono.]
 
3) pacat/paplay gets "Connection failure: Connection refused".
 
Any suggestions?
 -WBE

There has been loads of exciting work in /sys/dev/sound/, tho, the two
commits that might be of interest are:

sound: Get rid of snd_clone and use DEVFS_CDEVPRIV(9):
https://cgit.freebsd.org./src/commit/sys/dev/sound/pcm?
id=e8c0d15a64fadb4a330f2da7244becaac161bb70

sound: Remove unused dsp_cdevs[] fields and devices:
https://cgit.freebsd.org./src/commit/sys/dev/sound/pcm/dsp.c?
id=72cbd381075a2eb22a070505334d1ce92ec2d7ad

Otherwise no idea on how to replicate the older methods with the new sound
work.

--
To health and anarchy