DNG
DNG
DNG
DNG----ONE
ONE
ONE
ONE
D U A L N O I S E G A T E
D U A L N O I S E G A T E
D U A L N O I S E G A T E
D U A L N O I S E G A T E
USER GUIDE
USER GUIDE
USER GUIDE
USER GUIDE
INTRODUCTION
INTRODUCTION
INTRODUCTION
INTRODUCTION
In it’s simplest form, a noise gate is an automatic on/off switch which will mute a channel or track
when the sound falls below a pre-set level, reducing or eliminating unwanted background noise like
hiss, hum, and leakage from adjacent instruments etc.
It has no effect at all on the sound when the gate is open, passing the signal and any background
noise equally, when the noise should effectively be masked by the music. As soon as the wanted
signal stops, however, the gate will close.
The DNG-One has a full complement of controls allowing flexible and sophisticated gating, and will
provide excellent results in applications including multitrack recording, sound re-enforcement,
broadcasting, live gigs and multi-mic public address installations.
CONNECTIONS
CONNECTIONS
CONNECTIONS
CONNECTIONS
a)
Power
: UK models are supplied with a Eurolead, fitted with a 13 amp U.K. mains plug.
Export models come with a Eurolead with bare wire termination, fit a suitable mains plug for
your countries power supply socket. Connect this lead to the rear panel inlet socket. Always
replace a blown power fuse with one of the same value: for 220v-230v 50Hz, 1.6A 250v,
and for 110-120v 60Hz, 3A.
b)
Inputs
: Unbalanced mono jack sockets, 20Kohms. Connect to the signal source to
be gated with a screened lead.
c)
Outputs
: Unbalanced mono jack sockets, connect to a load of 600 ohms or greater
for maximum headroom.
d)
Key
: Unbalanced mono jack sockets, 10Kohms. This input allows the DNG-One’s detector
to respond to a signal source other than the audio that is being gated.
A gate is typically used with a mixer, connected to and from a channels insert points (breakjack),
across the main stereo output, between a reverb unit and an Aux return, in line between an
instrument and an amplifier, etc.
CONTROLS AND OPERATION
CONTROLS AND OPERATION
CONTROLS AND OPERATION
CONTROLS AND OPERATION
1)
Threshold
: The gate decides what is useful audio and what is noise by comparing the input
level at any one moment with a user-determined Threshold level. Signals louder than the
Threshold are passed to the output, and signals not reaching the threshold are muted.
Turning the control left increases the sensitivity, lowering the threshold point, and turning
to the right makes it less sensitive. In use, the knob should be set fully left and rotated to the
right until the background noise no longer turns the gate on. This adjustment must be made with
care; if the Threshold is set too high, the front of the wanted signal may be clipped off. Note too,
that increasing the level of the signal fed into the gate has the same effect as lowering the
Threshold.
2)
Attack:
This control determines how
quickly
the gate will open once the input signal
exceeds the Threshold. A fast attack usually suits short, percussive sounds like a snare drum, and
can indeed enhance the effect by giving extra emphasis to the very start of the signal. Slower
attack times may be more suitable for material with a naturally slower ‘rise’ time, such as strings,
flute, brass etc. Special effects like a ‘bowed’ sound from lead guitar can be achieved by using an
artificially slow Attack, similar to riding a guitar’s output volume with the little finger.
