User Manual-Mac

TROUBLESHOOTING
125
to use the Cuemix Console application that is
installed with the drivers. Please see “CueMix DSP
hardware monitoring” on page 108.
Noise on shutdown with a 2408mk3
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 I/O.
Controlling latency
The samples per buffer size setting in the 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 64 sample buffer, the monitoring
round trip is a mere 128 samples. You can
accomplish even lower latency using “Direct
Hardware Playthrough” which monitors audio at
the hardware level. For further details, see
chapter 12, “Reducing Monitoring Latency”
(page 105).
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 71.
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 software or AudioDesk CD
becomes damaged and fails to provide you with
fresh, working copies of the software, our
Customer Support Department will be glad to
replace it. You can request a replacement disc by
calling our business office at [phone] and
asking for the customer service department.
TECHNICAL SUPPORT
If you are unable, with your dealer’s help, to solve
problems you encounter with the PCI-424 system,
you may contact our technical support department
in one of the following ways:
■ Tech support hotline: [phone] (Monday
through Friday, 9 am to 6 pm EST)
■ Tech support 24-hour fax line: [phone]
■ Tech support email: [e-mail]
■ Web site: www.motu.com
Please provide the following information to help us
solve your problem as quickly as possible:
■ The serial number of the PCI424 system. This is
printed on a sticker placed on the bottom of the
rack-mount audio interface unit. You must be able
to supply this number to receive technical support.
■ Software version numbers for:
— AudioDesk
— The version numbers of the items in the MOTU
Folder (in the Extensions Folder of your startup
disk), including the PCI-424 Driver, the MOTU
Audio System