MOTU 828x 28x30 Audio Interface with ThunderTechnology - Manual (Page 40)

M O T U A U D I O S E T U P
40
828x tab settings
The 828x tab (Figure 5-1) provides settings that
apply to a specific 828x interface. If you have
several 828x (or other MOTU) interfaces
connected, you’ll see a separate tab for each one.
General tab settings
The General tab (Figure 5-1) provides settings that
apply to all connected MOTU audio interfaces.
‘828X’ TAB SETTINGS
Enable Core Audio Volume Controls
Under Mac OS X 10.6 (Snow Leopard) or later,
enabling this option allows you to use the Mac’s
volume control, such as the Output volume slider
shown in Figure 5-2 on page 43, or the volume keys
on your Mac’s keyboard, to control the output level
of the 828x when it is being used as the audio
output hardware for your Mac. The
Default Stereo
Output setting (page 42) determines the stereo
outputs to be controlled by the Mac’s volume
controls.
Sample Rate
Choose the desired Sample Rate for recording and
playback. The 828x can operate at 44.1 (the
standard rate for compact disc audio), 48, 88.2, 96,
176.4 or 192KHz. If you are operating at a sample
rate between 44.1 and 96kHz, make absolutely sure
that all of the devices connected digitally to the
828x’s optical connectors match the 828x’s sample
rate. At the 4x sample rates (176.4 or 192kHz),
optical I/O is disabled.
☛
Mismatched sample rates cause distortion and
crackling. If you hear this sort of thing, check the
sample rate settings in your hardware and here in
MOTU Audio Setup.
Figure 5-1: MOTU Audio Setup gives you access to all of the settings in the 828x hardware.