Not sure who is packaging PA for Devuan, but this minimally
invasive configuration works for me, and looks like a good
fit as a Devuan default, in that it doesn't take over
the ALSA default device.

https://wiki.archlinux.org/index.php/PulseAudio/Examples#PulseAudio_as_a_minimal_unintrusive_dumb_pipe_to_ALSA

N.B. The Arch Linux Wiki has great documentation for Linux audio.

--
Joel Roth