mixer(8) on FreeBSD
The text ef85a842259b, as FreeBSD 15.0-RELEASE, FreeBSD 14.4-RELEASE, FreeBSD 14.3-RELEASE, FreeBSD 14.2-RELEASE shipped it.
manipulate soundcard mixer controls
Flags it lists
-
-V -
-a -
-f -
-h -
-o -
-s