MOTU PCI-424, User Manual

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P E R F O R M A N C E T I P S & T R O U B L E S H O O T I N G
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Now all inputs coming into Bank A will be routed
to all outputs on every Bank.
No inputs available in host application
Check to make sure you have the desired inputs
and/or outputs enabled in the MOTU PCI Audio
Console. The inputs will be check boxes, and
outputs will have pop-up menus. Selecting From
Computer will enable an output to be used by your
audio application.
Interface banks not visible in the MOTU PCI Audio
Console
This would indicate that there is a communication
problem between the PCI-424 card and the audio
interface. Check your Audio Wire connection to
make sure it is seated firmly at both ends. To
reestablish communication, open the MOTU PCI
Audio Console, set the clock source to PCI-424
internal, and press the refresh button. If this fails,
try connecting the audio interface to one of the
other Audio Wire connections on the PCI-424 card
and repeat the above procedure for reestablishing
communication.
MOTU PCI Audio Console - Can't locate the
SPDIF input
SPDIF is only available on Bank C of the 2408mk3.
Configure Bank C for SPDIF in the MOTU PCI
Audio Console and make sure that the input is
enabled.
Monitoring - How to monitor inputs?
Please refer to the documentation for the audio
application that you are using. If your application
does not support input monitoring, you will need
to use the Cuemix Console application that is
installed with the PCI-424 system drivers. Please
see “CueMix DSP hardware monitoring” on
page 94.
Noise on shutdown
When you quit your audio software, or shut down
your computer, your interface will switch to stand
alone mode. In stand alone mode, the 2408mk3 is
acting as a format converter. If the 2408mk3 is set
to an invalid clock source, you may get noise on the
outputs of the 2408mk3. To avoid this, make sure
that the 2408mk3 has a valid clock source setting in
stand alone mode. If you are not sure, set it to
Internal.
PCI-424 hardware randomly goes offline
Check that the Audio Wire cable is well seated into
the PCI-424 card and the interface.
Controlling latency
The samples per buffer size setting in the MOTU
PCI Audio Console, determines the size of the
audio buffer before audio is processed. This value
also controls the amount of monitoring latency. At
its lowest setting, a 32 sample buffer, the
monitoring round trip is a mere 64 samples. You
can accomplish even lower latency using “Direct
Hardware Playthrough” which monitors audio at
the hardware level. For further details, see
chapter 10, “Reducing Monitoring Latency”
(page 91).
Can’t locate inputs and outputs in host software
Be sure you have enabled inputs in the PCI Audio
Console. Click the Enable Routing check box to see
all inputs and outputs. For details, see “Enable
routing” on page 69.
CUSTOMER SUPPORT
We are happy to provide customer support to our
registered users. If you haven’t already done so,
please take a moment to complete the registration
card included with your PCI-424 system. When we
receive your card, you’ll be placed on our mailing
list for free software updates and information
about new products.
REPLACING DISKS
If your PCI-424 system software CD becomes
damaged and fails to provide you with fresh,
working copies of the program, our Customer
Support Department will be glad to replace it. You