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To use compression, you must first set your
threshold value (usually expressed in dB). When
the audio signal is louder than this threshold, its
gain is reduced. The amount of gain reduction
applied depends on the Compression Ratio
setting. For example, with a 2:1 ratio, for every
2 decibels the input signal increases, the output
is allowed to increase only 1 decibel.
The Freeze Gate is used to prevent "suck-up"
of room noise during speech pauses. When ac-
tive, gain is not increased by the compressor
when audio is absent. "Freeze" would be the
default, since it almost always improves results.
De-Essing is just what you think it is - a way to
electronically remove extra sibilance from your
mic channel. If your mic is particularly sensitive
to "s" and "th-" sounds and accentuates them
on-air, De-Essing helps reduce these sounds to
more manageable levels. As with compression,
too much de-essing will produce annoying and
unnatural results - you'll wind up sounding like
you're talking through a cotton sock! Stick to
small amounts to get the effect you want.
»
Rotate the
Function/Exit
the
(Expansion),
Exp
sections of the onscreen display. Note
De-Ess
that the labels above and below the left and cen-
ter SoftKnobs change based upon which section
is highlighted.
»
When the
Expansion
*
Rotating the
Exp Thresh/Active/Bypass
SoftKnob varies the level of signal thresh-
old needed for the
(between -50 and 0dB). Pushing this knob
toggles Dynamics between Active and By-
pass states.
*
The
knob sets the amount of gain
Exp Depth
reduction when audio level falls below the
Exp Gate Threshold
tween -3 and 0dB).
»
When the
Compression
*
Rotating the
Comp Thresh/Bypass/Active
sets the upper limit of the level at which the
compressor will begin to work (between -30
and 0dB). Pushing the SoftKnob toggles be-
tween Active and Bypass states.
*
Comp Ratio/Freeze/No Freeze
compression ratio (variable between 1:1 and
16:1). Pushing the SoftKnob activates and
deactivates the compressor's Freeze Gate
SoftKnob to highlight
(Compression) or
Comp
controls are active:
function to activate
Gate
value (adjustable be-
controls are active:
sets the
©2008 Axia Audio — Rev. 3.0
function. When the Freeze function is active,
a red "lamp" illuminates just above the Com-
pression Ratio bargraph meter.
»
When the
controls are active:
De-Ess
*
Rotating the
De-Ess Thresh/Bypass/Ac-
knob sets the audio level above which
tive
the de-esser will be engaged (from -20 to
0dB). Pushing the SoftKnob toggles between
Active and Bypass states.
*
Rotating the
De-Ess Ratio
amount of sibilance reduction, in dB, that
will be applied (adjustable between 1:1 and
8:1).
»
Pressing the
Function/Exit
you to the Channel Options screen.
•
Pan & Mode Controls
Pressing the
Select
box is highlighted allows the operator to adjust
Mode
the pan or balance of the channel source and correct sig-
nal phase errors.
It's a Lock: If a "padlock" icon appears in any
options screen, that function is "locked out" in
Figure 4-25: Pan & Mode menu screen.
knob sets the
SoftKnob returns
SoftKnob when the
Pan &
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