Lectrosonics D4 System User Manual download pdf (Page 9)

4-channel Digital Wireless System

Rio Rancho, NM, USA

Transmitter

Audio Trim Setup

FromtheMainWindow,pressFUNCandthenselect

themenuitem“AudioTrim”andpressFUNCagain.

The setup screen will vary slightly depending upon

whichAES3modehasbeenselectedandwhether

the 2-channel or 4-channel mode is selected. In the

2-channelmode,channels3and4willbeblank.

Use UP/DOWN

arrows to select

menu item and

press FUNC to

enter setup

1 2 3 4

In this example, the transmitter is

conﬁgured for four analog channels. Select

each channel with the button below it and

use the UP and DOWN arrow buttons to

set the desired level.

The bar graph

will indicate

possible

clipping

1 2 3 4

When the transmitter is conﬁgured for two

digital and two analog inputs, press the

button under the analog channel to be

adjusted and then use the UP and DOWN

buttons to set the desired level.

The audio trim adjustment only applies

to analog inputs. When the transmitter

is conﬁgured for four digital channels

using the two AES/EBU inputs, no trim

adjustment is needed.

The analog inputs are designed for line level signals.

There is no gain stage in the input section. Attenua-

tion up to 20 dB can be applied to the input signal to

reduce very high level signals to the optimal range.

When the audio trim control is set to +0, input clip level

is +0dBu. When the audio trim control is set to −20,

20 dB of attenuation will be applied, thus moving the

input clip level to +20dBu. These are the extremes, and

levels in between follow the same logic.

The digital inputs can accept any standard AES/EBU

signalwithouttheneedforleveladjustment.Digital

audio levels are accepted and transmitted without

alteration.

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Lectrosonics D4 System User Manual Page 9

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