Mackie 8-BUS Series, Руководство пользователя

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3-11
O w n e r ’ s M a n u a l
Start-Up
4. Press the PREVIOUS button to get
back to the main menu, or press the
GENERAL button to resume normal
Fat Channel operation.
TO DETERMINE THE OPERATING SYSTEM
VERSION
From the screen:
1. Click on “Windows” in the upper menu
bar. Select “About” in the drop-down
menu. The About Box appears on the
screen.
Note: From time to time, you should check
our web site at
www.mackie.com
, or call our
Tech Support department to determine if you
have the current version of the software. If
you discover that you need to upgrade the
operating system (OS), refer to Appendix H
(Upgrading) to see how to proceed.
56 INPUT / 72 CHANNEL DIGITAL MIXER
D8B
S o f t w a r e b y B o b T u d o r a n d P e t e r W a t t s .
M a c k i e R e a l t i m e O S f o r D 8 B 1 . 0 .
Digital I/O Setup
Settings that fall under Digital I/O setup include
input and output select (when one or more DIO•8
digital tape I/O cards are installed), Apogee
UV22
® , AES/EBU or S/PDIF input select, and
Sample Rate.
Configuring Digital I/O
If you’re using digital inputs and outputs, par-
ticularly if you’ve installed the optional Digital
Tape I/O cards in the Digital 8•Bus, there are a
number of parameters that you must define for
your particular application.
• INPUT: If you have Digital Tape I/O cards in-
stalled, you can select the TDIF-1 or the ADAT
optical input.
• OUTPUT: You can independently select the
TDIF-1 or the ADAT optical output. In addition,
you can choose to dub from TDIF-1 input to
ADAT output, or from ADAT input to TDIF-1
output.
• UV22: The Digital 8•Bus is equipped with
Apogee’s acclaimed UV22 encoding. This is be-
coming an industry-standard process for final
mastering to 2-track for CD recordings.
The UV22 process can be switched on or off
at the digital tape outputs, the ALT I/O outputs, or
the Stereo AES/EBU output, depending on your
application. You can also select whether to use
the UV22 at full power or low power at each out-
put. Use Full Power for final mastering when you
haven’t used it elsewhere during the recording
process. Otherwise, use Low Power if you use it
for both tracking and mixdown.
The AES/EBU and S/PDIF Stereo Master
Outputs are normally 24-bit digital outputs. You
can enable UV22 encoding on the AES/EBU out-
put or the S/PDIF output and “dither” it down to
16-bits, while still retaining the accuracy and
linearity of the 24-bit signal. (See Appendix D
for an in-depth discussion of the UV22 process.)
If you have installed the DIO•8 cards in the
Tape I/O slots or the ALT I/O slot (see Appendix
F), their outputs are normally 16-bit, but trun-
cated down from 24-bits. You can enable the
UV22 process for the digital tape outputs, pro-
viding a much lower noise floor and improved
linearity.