--- In LecNet2@yahoogroups.com, "Steve Roth" <steve@...> wrote:
>
> I'm looking for ideas for handling sources like wrls mics, which need
> to be routed to ONE room only (at a time) in a combining system. If
> rooms get combined with the room containing the wrls mic, of course
> then they should hear it too. This is a little different than a
> matrix, rather a 'router' of the source.
>
It would be easier to provide a workable answer if you could tell us how many
rooms and
combinations there are, how many of these "wild" input sources there are, and
the type of
control system (AMX/Crestron, or hard wired switch panel).

If it's only a couple of sources, and 4 rooms, for example, it should be
possible to create a
little router panel with switches (set to toggle crosspoints). With a DM1624,
for example,
there are 22 input logic pins. Some would be needed (presumably) for preset
recalls.
Depending on the number of presets needed there might be enough input logic pins
left
over to route a few inputs in an ad hoc manner to the 4 rooms. For larger
systems it
would be necessary to use a control system like AMX or Crestron.

Example: If there are 4 rooms that combine and 5 combinations to recall
(depending on
the layout and the customer's expectations) you'd have 17 pins left over. That
could
provide for 4 "wild" sources routed to any of the 4 rooms (16 switches in 4 rows
of 4).
(But then you might not have enough pins left over for volume controls). If you
had 2 DM
mixers, the slave would have an additional 22 pins that could control the inputs
to that
mixer, (so you'd connect all the "wild" inputs to the slave), freeing all the
input logic pins
on the master for volume and preset control.

I guess the real answer (as Pat Brown likes to say) is: "it depends".

Regards,

Howard Kaufman