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From: Alastair Hogge <agh@riseup.net>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: 14.1: /dev/audio gone?  Is there a replacement?
Date: Wed, 19 Jun 2024 04:57:55 -0000 (UTC)
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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