M-AUDIO AIR 192|8 Desktop 2x4 USB Type-C Audio/MIDI Interface User Manual

Page 7

Monitor Level:

Adjusts the output volume of

Main TRS

and

RCA Outputs (1/L 2/R)

, which

should be connected to your powered monitors or amplifier system.

10.

Monitor Mix:

Adjusts the mix of the audio signal from your inputs (

Direct

) and the audio output

of your computer (

USB

) that will be sent to the

Main Outputs

and

Headphone Output

Note:

When set to

Direct

, the left channel will be

Input 1

and the right channel will be

Inputs

. You can sum the left and right channels (to hear both inputs as a single-summed mono

signal) by putting the

Direct Monitor

switch to the

Mono

position.

This knob is useful for dealing with "latency" when you are recording in your DAW. Latency is a
delay in sound that may occur between the incoming sound (playing your instrument, singing,
etc.) and outgoing sound (when you hear it in the DAW).

Latency is often the result of the "buffer size" setting, which is usually located in your DAW’s
Preferences, Options, or Device Setup menu. Higher buffer sizes generally result in higher
latency. In some cases, lower buffer size settings can consume a lot of your computer’s CPU
and cause audio glitches. To prevent these audio glitches, you will need to use a higher buffer
setting, and this may result in latency.

If you are experiencing latency when recording, adjust the knob towards the

Direct

position to

increase the blend of unprocessed audio from your inputs directly to your

Main Outputs

and

Headphone Output

. This will let you hear the incoming audio from your inputs without latency

while still being able to hear the audio from your DAW. When listening to the playback, adjust
the knob all the way to the

USB

position.

If your computer is powerful enough, you may be able to set the buffer size setting in your DAW
low enough such that you may never need to listen to the direct audio signal from your inputs.
In this case, set the

Monitor Mix

knob all the way to the

USB

position to monitor only the audio

output of your DAW.

11.

Direct Monitor Selector:

Leave this switch in the right

Stereo

position to monitor the direct

input signal with

Input 1

in the left channel and

Input 2

in the right channel. This is useful if you

want to directly monitor a stereo mic setup such as a stereo signal from a keyboard, or
overhead drum mics. Put this switch in its left

Mono

position (

Mono

LED is lit) to monitor the

direct input signal with all inputs summed and heard equally on each side. This is useful for
monitoring a guitar or vocal mic signal. This switch does not affect the DAW playback or how
your sound is recorded into your DAW; it only affects how you hear the input signal in the

Headphone

Output

(when the

Headphone Source Selector

is set to

1/2

, and the

Monitor

Mix

is set to anything besides USB) and

Monitor Outputs

12.

Headphone Source Selector:

This switch selects which outputs (on the rear panel) are also

sent to the

Headphone Output

Main Outputs 1–2

(

1/2

), or

Outputs 3–4

(

3/4

13.

Headphone Output

(front panel)

Connect 1/4" (6.35 mm) TRS headphones to this output. The

mix you hear from these outputs will be determined by the

Headphone Source Selector

Monitor Mix

knob,

Direct Monitor Selector

, and

Headphone Volume

knob.

14.

Headphone Volume

(front panel)

Adjusts the output volume of the

Headphone Output

15.

Instrument Inputs

(front panel)

Connect a guitar with a passive pickup or other high-

impedance signal to these inputs with a 1/4" (6.35 mm) TS cable. View the input signal levels
with the

LED Meters

Note:

Using an

Instrument Input

will mute the

Combo Input

on the corresponding channel.