TC-Helicon VoiceLive Rack Full User's Manual - Manual (Page 21)

20
The Tone Button
COMPRESS Tab Overview
This tab offers further control of the compression
effect. The controls on this tab change depend-
ing on the status of the ADAPTIVE setting in the
same way as the EQ tab.
COMPRESS Tab With ADAPTIVE
ON
The ADAPTIVE Compression algorithm performs
automatic processing which reduces the number
of adjustable parameters. As such, once ADAP-
TIVE is enabled, the only control is COMPRESS.
f COMPRESS
This allows you to vary the amount of peak
reduction by the ADAPTIVE compression al-
gorithm. The factory value is 50% but you can
increase or decrease as you require.
COMPRESS Tab With ADAPTIVE
OFF
Turning off ADAPTIVE compression switches
compression to manual control. Be sure to
reduce the level of your PA or switch to head-
phones when adjusting the manual compressor
because high settings can cause more gain and
thus feedback.
f THRESHOLD
This sets the singing level at and above which the
amount of gain reduction (compression) specified
by the RATIO control will occur. The range is 0
dB to -30 dB: 0 dB being the loudest input signal
VoiceLive Rack can accept without distortion and
-30 dB being a very quiet signal. If you sing con-
sistently more quietly than the THRESHOLD, you
will not hear any compression. You can see your
input level on the IN meter on the Home screen.
A good setting for experimentation is -10 dB.
f RATIO
This sets how much gain reduction you prefer
when your voice level goes above the threshold.
The range is from 1:1 (no gain reduction) to 4:1
(maximum vocal gain reduction ). The default set-
ting for RATIO is 4:1.
The number on the left side of the : (colon)
symbol is how loud the peaks in your singing have
to be in order to achieve a 1 dB gain increase. A
brief example of how adjusting the ratio of com-
pressor works is this: say a word you sang went 4
dB over the threshold when the Ratio was set to
4:1. The compressor would only allow it to go 1
dB louder.
Note that the RATIO control has to be set above
1.0 (1.0:1) to apply any compression regardless of
the setting of the THRESHOLD.
Also note that automatic makeup gain occurs
depending on your combination of THRESHOLD
and RATIO. A side effect of compression is that
it can reduce apparent level until makeup gain is
applied to raise the overall level.