iSIS Graham-Patten SoundPals DMIX-41, User Manual

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DMIX-41 User Guide
Page 7
DMIX-41 Operation
This section provides information for local operation (when no remote control is connected), and
AC-3 operation.
NOTE For details on remote control connection and operation, please refer to the
“
DMIX-41 Remote Control ” section.
Local Operation
In the full “local” mode with your desired inputs connected (in an essentially “hands-off”
environment), the following mixing conditions are in effect:
•
All valid inputs are mixed at unity gain onto the output bus.
•
Any input that is not present (or not valid) is automatically muted, and its corresponding
red ERROR LED on the front panel will be lit.
•
The lowest-numbered error free input is automatically assigned as the master, and the
AES output is timed to the master.
•
Inputs can not be muted locally.
•
A master can not be assigned locally.
AC-3 Operation
AC-3 is an audio compression system (designed by Dolby Labs) that transports up to 6 audio
channels. The AC-3 signal is compressed and passed through a single AES transport stream,
and a special decoder is required. The DMIX-41 can
not mix AC-3 audio, but it can pass and
switch up to four AC-3 streams under the following conditions:
•
Inputs are not equipped with SRC’s (sample rate converters).
•
Remote control “input mute” switches are connected. Refer to the “ DMIX-41 Remote
Control ” section for details.
•
The unit is set for 24-bit processing. Refer to the “ DMIX-41 Internal Jumpers ” section
for details.