Re: question about sound

["mick.crane" <mick.crane@gmail.com>]

On 2022-08-17 18:50, Greg Wooledge wrote:
> On Wed, Aug 17, 2022 at 10:27:25AM -0700, Bob McGowan wrote:
> > The command to add a user to a group is:  useradd -G
> > groupname[,groupname...] username
> >
> > For example:  useradd -G audio,pulsaudio bob
>
> Debian also allows "adduser username groupname".

I sort of understand permissions for files but I'm not understanding 
permissions for streams whatever that is.
I'm just requesting some comprehensible, simple to understand, overview 
of how the sound softwares are working.
mick