Kent West wrote:
Dave Thayer wrote:
On Fri, Dec 08, 2006 at 03:42:02PM -0600, Kent West wrote:
We're wanting to use one Debian box to play two different audio
streams to two different systems: one playing music-on-hold for our
general telephone system, and one playing tips-and-updates for our
Helpdesk phone system (for simplification purposes, you can just
think of the two streams going to two different sets of speakers
located in two different rooms).
I figure we'll need two sound cards, each driving its own set of
speakers.
Since phone systems are mono, have you considered using the left and
right channels seperately for the audio sources? You might be able to
get by with some mixer software trickery to run L & R independently.
Thanks for the suggestions, everyone. It looks like Dave's idea will
work well for us.
I've started up two instances of xmms (had to go into
Options/Preferences/Options and turn on "Allow multiple instances", and
put one audio tune on one instance, and moved the balance all the way to
the Left, and then put another audio tune on the other instance, moving
it's balance all the way to the Right. Preliminary testing indicates
that this will work.
You might make sure by cranking up the audio as high as it will go on
both individually and making sure there's no cross-talk. I've seen some
(cheap, crappy) sound cards that only have about -40dB isolation between
Left and Right channels.
If this is a one-off, and you are good to go with your current setup,
great. If you're going to try to accurately reproduce it, be aware that
some (cheap, crappy) sound cards don't have much isolation between the
Left and Right channels.
Nate
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