MOTU Audio Express User's Guide download pdf (Page 46)

REDUCING MONITORING LATENCY

MONITORING LIVE INPUT

There are two ways to monitor live audio input

with an 4pre: 1) through the computer or 2) via the

4pre’s CueMix hardware mixer. Figure 8-1 below

shows method 1, which allows you to add effects

processing such as reverb and guitar amp effects

via plug-ins in your audio software. See the next

section, “Adjusting the audio I/O buffer” for details

about how to reduce — and possibly eliminate —

the audible monitoring delay that the computer

introduces.

Figure 8-2 shows how to use CueMix hardware-

based monitoring, which lets you hear what you are

recording with no monitoring delay and no

computer-based effects processing. Instead, input

is routed directly to an output. See “CueMix

hardware monitoring” later in this chapter for

details on how to use CueMix with your audio

software, or with the included CueMix FX

software.

If the material you are recording is suitable, there is

a third way to monitor live input: use both methods

(Figure 8-1 and Figure 8-2) at the same time. For

example, you could route guitar to both the

computer (for an amp model effect) and mix that

processed signal on the main outs with dry guitar

from CueMix.

1. Live input (from mic,

guitar, etc.) enters the

MOTU interface.

2. Mic signal goes immedi-

ately to the computer (dry,

with no effects processing).

3. Mic signal is

‘patched thru’ back to

the audio interface

with reverb or other

plug-in effects, if any.

Figure 8-1: There are two ways to monitor live audio inputs with an 4pre: 1) through the computer or 2) via CueMix 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.

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).

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