MOTU PCI-424, User Manual, Page: 214 / 270

M O T U P C I A U D I O C O N S O L E
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computers seem to have approximately 30-50 MB
per second of PCI bandwidth for the 2408mk3 and
other PCI cards in the computer.
INTERFACE OPTIONS
The
Interface options
button opens a dialog that
provides several settings for the interface currently
chosen in the
Configure Interface
menu.
2408mk3 interface options
Each 2408mk3 interface has the following options:
Figure 6-7: The 2408mk3 interface options.
Analog output bank mirroring
The
Bank to mirror on Analog
menu lets you choose
what comes out of the Analog outputs when none
of the 2408mk3’s three banks (A, B or C) are set to
Analog
.
Even when
Analog
is not currently selected on any
of the three banks in the PCI Audio Console
window, the Analog outputs of the 2408mk3
mirror — or duplicate — one of the three banks.
By default, they mirror Bank A. To choose another
bank, click the
Interface Options
button and choose
the desired bank from the menu as shown above in
Figure 6-7.
Input Reference Level
These settings let you specific the input reference
level for the four analog input pairs on the
2408mk3 interface. The factory default setting is
+4 dB. If an input signal sounds weak, try the
-10 dB setting.
Word Out Rate
The Word Out Rate menu lets you either double or
halve the current system word clock rate.
If the current PCI-424 system word rate is a high
sample rate (88.2 or 96 kHz), then the word clock
output can either match it or operate at half the rate
(44.1 or 48 kHz).
If the current system word rate is a low sample rate
(44.1 or 48 kHz), the word clock output can either
match it or operate at twice the rate (88.2 or
96 kHz).
24I/O interface options
Each 24I/O interface has the options shown below
in Figure 6-8.
Figure 6-8: The 24I/O interface options.
Input Reference Level
These settings let you specific the input reference
level for the inputs on the 24I/O interface. On the
24I/O, the input reference level is set in banks of 8
inputs at a time. The factory default setting is
+4 dB. If an input signal sounds weak, try the
-10 dB setting.