Troubleshooting - MOTU 828 User Manual

Troubleshooting

A
APPENDIX
My 828 isn't showing up in Audio MIDI Setup on my
Mac.
Due to the updated architecture of macOS High
Sierra (10.13) and above, the system extensions for
all newly-installed third-party software will
automatically be blocked from running. If your
828 is not showing up in Audio MIDI Setup,
CueMix 5 or your DAW, you might need to enable
the driver in your System Preferences. To do so,
first download and install the very latest installer
for your 828. After restarting, open System
Preferences. Select Security & Privacy. In the
General section, click the Allow button. The Allow
button will disappear 30 minutes after installation.
If the button has disappeared, run the installer for
the MOTU driver again.
I have absolutely no audio input or output
happening to or from my 828. Why?
Make sure that the unit has a stable sample rate
(the lock icon in the front panel displays will flash
red if the clock hasn't settled yet). Try setting the
unit's clock source to Internal if you can't sync to
any external clock sources. Check that audio is
working with Internal sync, and if so, then work
on establishing a stable external clock.
I can't hear computer audio output through my 828.
In the Sound panel of System Preferences, the 828
should be selected as the output device.
How do I monitor live 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 mixer in the 828. Please see "Monitoring
through the 828" on page 58.
How do I control monitoring latency?
See "Reducing monitoring latency" on page 58.
How do I factory reset my device?
Push SELECT or turn the MENU knob to enter
the main menu. Navigate to RESET and tap the
SELECT button three times to reset.
I hear clicks and pops under optical or S/PDIF sync.
Many problems result from incorrect sync
settings. See "Synchronization" on page 29.
Whenever there is any unexpected noise or
distortion, suspect digital clocking issues.
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 on the 828. 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 there are other drive-related issues.
Connecting or powering gear during operation...
It is not recommended that you connect/
disconnect, or power cycle connected devices
while recording or playing back audio. Doing so
may cause a brief glitch in the audio.
CUSTOMER SUPPORT
We are happy to provide complimentary customer
support to our registered users. If you haven't
already done so, please take a moment to register
online at MOTU.com. Doing so entitles you to
technical support and notices about new products
and software updates.
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