User`s guide

REDUCING MONITORING LATENCY
67
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, buffe rs are u s ed 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.
Buffer size adjustment is made in the MOTU
FireWire Audio Console, as shown in Figure 9-3
via the
Samples Per Buffer setting.
Figure 9-3: Lowering the ‘Samples Per Buffer’ setting in the MOTU
FireWire Audio Console Window reduces patch thru latency. But
doing so increases the processing load on your computer, so keep an
eye on the Performance Monitor in your host audio software.
2. CueMix™ DSP immediately
patches the live mic signal directly
to the main outs (or other output),
completely bypassing the computer
(dry, with no effects processing).
3. Mic signal is mixed with the
main outs, and you can control
the volume (relative to the rest
of the mix) with the mic’s fader
in CueMix Console.
Figure 9-2: This diagram shows the signal flow when using CueMix™ DSP no-latency monitoring. Notice that this method does not allow you
to process the live input with plug-ins in your audio software while it is being monitored. You can, however, add effects later — after recording
the live input as a disk track. CueMix™ DSP lets you hear what you are recording with no delay and no computer-based effects.
1. Live input (from mic, guitar, etc.)
enters the MOTU interface.
!Traveler Manual/Win Page 67 Monday, November 29, 2004 3:50 PM