KORG Professional Engineer PA3 - Manual (Page 100)

98 Voice Processor
Voice Processor Setup: Mic Tone
There is only the single DeEss Level control; no other manual
adjustment settings are required. The factory setting of 50% gen-
tly reduces sibilance without becoming obvious. Higher settings
of compression and Shape or a bright, sibilant voice may require
a higher setting.
Compress/DeEss with Adaptive Off
Turning off Adaptive compression switches compression to
manual control. Be sure to reduce the level of your amplification
or switch to headphones when adjusting the manual compressor
because high settings can cause more gain and thus feedback.
Note: The DeEss Level control will remain unchanged.
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 the Voice Processor can accept without distortion and -30
dB being a very quiet signal. If you sing consistently more quietly
than the Threshord, you will not hear any compression. A good
setting for experimentation is -10 dB.
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
setting 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 com-
pression is that it can reduce apparent level until makeup gain is
applied to raise the overall level.
Gate
If your musical accompaniment is loud or you hear feedback, the
Gate control will enable you to make adjustments.
Adaptive
When set to the factory default of Adaptive, the Gate control
helps in two very important ways by:
1. Minimizing feedback
2. Reducing the amount of audible effects processing on
sounds entering the mic other than your voice.
A typical, fixed gate works by shutting off, or reducing the level
of any signal below a threshold that you set. When you sing
louder than that threshold, the gate will open and your vocal will
come through the amplification system. When you aren’t sing-
ing, the gate will close and block sounds around you.
The Adaptive Gate works automatically with your singing style
to provide the optimum balance between how loud you have to
sing to open the gate and how much other noises are reduced.
For troublesome audio environments, or for those who are
familiar with setting manual gate parameters, there is also a
Manual
setting.
You can also turn the gate to Off with good results if you are in a
quiet, low volume musical environment.
Lead Atten(uation)
This controls how much your lead voice level is reduced (attenu-
ated) when your voice falls below the Gate threshold and the
Gate closes. This setting applies whether the Gate is set to Adap-
tive or Manual. The factory default setting of -3 dB (a reduction
of 3 dB) is gentle enough that if your voice strays below the
threshold, it is not cut off completely. If you are in a feedback-
prone environment (loud monitors plus Shape and Compress
on) you can increase this to reduce more. A setting of 0 dB offers
no gain reduction on your lead voice at all. Settings of -30 to Off
effectively mute your voice when the Gate is on.
Harm(ony) Atten(uation)
This sets the amount of attenuation for the Harmony and Dou-
bling voices when the Gate closes. They have a separate attenua-
tion setting to reduce chatter caused by instrument sounds
entering the mic and being harmonized when you aren’t singing.
The factory default attenuation amount of -10 dB should work
well in many situations, but you can fur ther reduce the level if
you still hear harmonized instrumental chattering when you
stop singing.
Threshold
(Only with Manual Gate) This parameter becomes visible when
the Gate has been switched to Manual. The Threshold defines
the minimum singing level you need to reach in order for the
Gate to open and let your voice sound. The factory default set-
ting of -40 dB is very sensitive to allow a wide range of singing
levels but it may also allow more nearby instrumental sounds
through when you are not singing. In this case, further adjust-
ment from -39 dB and upward may be needed.
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