[CentOS] How to enable sound for other users but the one who owns the current session

On Thu, 3 Jul 2014, wwp wrote:

> I'm trying to get sound from applications running from other users bug
> the one who owns the current GNOME sessions.
>
> Typically, my default user is "A" and he's running the GNOME session,
> logged in graphically. From this session, I open terminals, su to other
> users (B or C, non-root) and run mplayer or firefox. No sound for these.

If A enables sound, does it work for other users?

-- 
Michael   hennebry at web.cs.ndsu.NoDak.edu
"SCSI is NOT magic. There are *fundamental technical
reasons* why it is necessary to sacrifice a young
goat to your SCSI chain now and then."   --   John Woods