MOTU Audio Express User's Guide download pdf (Page 33)

AUDIO EXPRESS FRONT PANEL OPERATION

Use the following gestures for controlling pan for

the (stereo) S/PDIF input, or any inputs that are

conﬁgured as a stereo pair by the CueMix FX

software (see the next section):

To go back to controlling volume, push and hold

the MIX/VOL knob again. The volume (vol) LED

once again becomes illuminated.

Stereo pairs

From the factory, the two mic/instrument inputs

and two TRS analog jacks are conﬁgured as

individual mono inputs, each with its own knob.

However, the CueMix FX software gives you the

option of controlling them as stereo pairs. (See

“Mono/stereo pairing” on page 53.) If you do so,

the two front panel knobs that correspond to the

pair will each affect both channels in identical

fashion.

For example, if the two mic inputs are conﬁgured

as a stereo pair, you could use either the MIC 1

knob or the MIC 2 knob to control the volume of

the pair. Panning can also be controlled using

either knob, as explained in the previous section

for stereo pairs.

The S/PDIF input is different than the analog

inputs because its two channels are, by default,

grouped as a stereo pair. In addition, there is only

one knob on the front panel for the pair. Most of

the time, you will operate the S/PDIF input in

stereo. However, the CueMix FX software does let

you conﬁgure the S/PDIF channels as two separate

mono channels. If you choose to do so, the front

panel knob controls volume for both channels

identically. For pan, it controls them using either

balance or width, as explained in the previous

section for stereo pairs.

Adjusting input trim

When you push the Mix Volume knob (Figure 6-4)

repeatedly to cycle among the four different mixes,

there is a ﬁfth choice: the trim LED (Figure 6-4).

When it is illuminated, the input volume knobs

(Figure 6-1) control the trim level for each input.

The trim level adjustment occurs before the signal

enters the Audio Express mixer, so it applies to all

mixes. Trim is useful for adjusting the overall level

of the input. For example, if you plug in a mic, and

the signal is so strong (loud) that it distorts the

input, use trim to reduce the volume until it no

longer overdrives the input.

Toggling pad and 48V phantom power

When adjusting trim (the trim LED is

illuminated), you can toggle the -20 dB pad and

48-volt phantom power for each mic input as

follows:

■ Push the knob to toggle the -20 dB pad

■ Push and hold the knob to toggle 48V power

When enabled, the corresponding 48V or pad LED

(Figure 6-4) will illuminate.

Using the Audio Express as a monitor mixer

while recording tracks on the computer

You can use the Audio Express front-panel mixer

while connected to a computer. This allows you to

create monitor mixes that are independent of

what’s going on in the computer. Using the Audio

Express as a monitor mixer in this fashion is a good

way to avoid latency (delay) issues that can arise

when using audio software on a computer. See

chapter 9, “Reducing Monitoring Latency”

(page 45) for more information about dealing with

latency.

Do this To do this

Turn To adjust balance or width

Push and hold To toggle between balance and width

In balance mode, push To set balance to center

In width mode, push To toggle between 100% (full stereo)

and 0% (full mono)

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MOTU Audio Express User's Guide Page 33

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