Hi,

> Did you also test without pulseaudio e.g., via sndio plugin?
> 
> https://github.com/Duncaen/alsa-sndio
> https://repology.org/project/alsa-sndio/versions

Not yet and no plan to try, sorry.

This plugin does not come from alsa-plugins,
and does not support recording (capturing).

-- 
SASANO Takayoshi (JG1UAA) <uaa@mx5.nisiq.net>