Reducing Monitoring Latency - MOTU Traveler-mk3 User Manual

processed signal on the main outs with dry guitar
from CueMix FX — or perhaps with a touch of
Traveler-mk3 Classic Reverb.
ADJUSTING THE AUDIO I/O BUFFER
A buffer is a small amount of computer memory
used to hold data. For audio interfaces like the
Traveler-mk3, buffers are used for the process of
transferring audio data in and out of the computer.
The size of the buffers determines how much delay
you hear when monitoring live inputs through
your audio software: larger buffers produce more
delay; smaller buffers produce less.
Under Mac OS X, audio I/O buffer size is handled
by the host audio application (not the
Traveler-mk3 Core Audio driver). Most audio
software applications provide an adjustable audio
buffer setting that lets you control the amount of
delay you'll hear when monitoring live inputs or
processing them with software plug-ins. Below are
a few examples.
2. Mic signal goes immedi-
ately to the computer.
Figure 10-1: There are two ways to monitor live audio inputs with an Traveler-mk3: 1) through the computer or 2) via CueMix FX hardware
monitoring. This diagram shows method 1 (through the computer). When using this method, use your host software's buffer setting to reduce
the slight delay you hear when monitoring the live input, but don't lower it too much, or your computer might get sluggish.
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3. Mic signal is
'patched thru' back to
the audio interface
with host-based
plug-in effects, if any.
Mac
Figure 10-2: In Digital Performer and AudioDesk, choose Setup
menu> Configure Audio System> Configure Hardware Driver to open
the dialog shown above and access the Buffer Size setting. Refer to
your Digital Performer or AudioDesk manual for information about
the Host Buffer Multiplier setting.
1. Live input (from mic, guitar, etc.)
enters the MOTU interface.
4. Mic signal (with plug-in
processing, if any) is routed
to the main outs (or other
outputs that you've specified
in the software).
R E D U C I N G M O N I T O R I N G L A T E N C Y