CHAPTER
79
11 Troubleshooting
Things seems like they are working fine, but the
4pre then just drops off line, and the computer can’t
see it anymore.
This is a common symptom when the problem is
that the 4pre is not getting enough power when it is
being powered over the Firewire bus. Check the
power source for the 4pre. Make sure that the
power connection meets the requirements outlined
in “Power options” on page 23.
Slaving directly to time code in AudioDesk or
Digital Performer
To slave Digital Performer or AudioDesk directly to
time code, be sure to go to the Receive Sync dialog
in Digital Performer or AudioDesk and switch
from “MTC” to “Sample-accurate.”
4pre inputs and outputs are not visible in Cubase
You probably need to enable them in Cubase.
Can’t authenticate AudioDesk
When installing software off the CD-ROM, the OK
button does not become active until you have
entered in your name and a valid keycode. Your
name must contain at least 3 characters, and you
must enter the keycode exactly as it appears in your
AudioDesk manual (on the inside of the back
cover). If you continue to have difficulties, try
repairing Mac OS X disk permissions using Disk
Utility.
Clicks and pops due to hard drive problems
If you have checked your clock settings and you are
still getting clicks and pops in your audio, you may
have a drive related problem. Set your Clock
Source to Internal and try recording just using the
analog inputs and outputs of the 4pre. If you
encounter the same artifacts you may want try
using another drive in your computer. Clicks and
pops can also occur when the drive is severely
fragmented or the disk drivers are outdated.
Connecting or powering gear during operation
It is not recommended that you connect/
disconnect, or power on/off devices connected to
the 4pre while recording or playing back audio.
Doing so may cause a brief glitch in the audio.
How do I 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 4pre’s hardware-based CueMix
monitoring feature. Please see “Mixing with the
front panel controls” on page 36.
Controlling monitoring latency
See chapter 8, “Reducing Monitoring Latency”
(page 45).
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 register on line at
motu.com, or fill out and mail the registration card
included with your 4pre. Doing so entitles you to
technical support and notices about new products
and software updates.
REPLACING DISCS
If your 4pre software installer disc 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 (617) 576-2760 and asking for the
customer service department. In the meantime,
you can download the latest drivers from
www.motu.com.
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