Re: RME HDSP+Multiface: Pipewire crackling playback

* Masaru Nomiya <[email protected]> [2026-08-04 06:05]:
[...]
> It's an old sound card, so I'm not entirely sure, but how about this?
> 
>     1. Set the clock source to "Internal" in hdspconf
> 
>     2. make 10-rate.conf file  in ~/.config/pipewire/pipewire.d.conf
> 
>        context.properties = {
>        			  default.clock.rate = 48000
>        			  default.clock.allowed-rates = [ 48000 ]
>        			  default.clock.force-rate = 48000
> 			  default.clock.quantum = 1024
>        }
Thanks for this suggestion! Will these config file's contents then
affect pipewire as a whole without reference to a specific card? Just to
be sure: The settings you propose are identical to the settings I get
from pw-metadata already.

>      3. $ systemctl --user restart piprewire pipewire-pulse.soscket wirfeplumber
> 
>      4. If the problem persists, increase the quantum value to
> 
>      	   default.clock.quantum = 2048
> 
> If that still doesn't work, please either play the audio using the
> pw-jack layer ($ pw-jack mpv ) or report the issue to the PipeWire
> bug tracker.

Increasing quantum or switching to the pw-jack layer seems awkward since
the card works perfectly after having toggled the sampling rates.
However it goes back to crackling mode once the card has gone from the
"suspended" state to the "idle" state after playback has ended.

cheers, Peter