527E
4
The 527E’s controls and switches are now set
according to the preceding section. The 527E
should now pass signal. The O
UTPUT
L
EVEL
LED
display and the P
OWER
LED should be illuminated.
Depending upon the signal levels, the
compressor’s gain-reduction display may be
illuminated.
Refining Your Settings
Temporarily put the Exp/Comp and EQ sections
into bypass mode, set the M
IC
G
AIN
control so that
the O
UTPUT
LED display indicates a signal level
between -10 and 0 VU. The C
LIP
LED should almost
never illuminate.
Use the downward expander to reduce background
noise and/or mouth noises. Set the T
HRESHOLD
control to allow low level speech sounds to pass
while still blocking unwanted sounds which are at a
lower level than the lowest-level speech audio.
Use the threshold control to vary the amount of
gain reduction, as indicated on the compressor’s
gain-reduction display. Generally, 3 to 6 dB is
sufficient, unless you are using a low compression ratio (below 2:1), or you want a special effect.
Pick a ratio suited to the task at hand: low ratios and low thresholds for unobtrusive level control,
medium ratios for overall level control and consistency, high ratios (> 8:1) for limiting or in-your-
face sorts of sounds.
The frequency settings given will work well with male voices. For women, the low-EQ range shifts
up to 200 or 300Hz, the mid-EQ range shifts up to 3-5 kHz.
If you are using a microphone that exhibits proximity effect when you close-talk it, then you’ll
probably need to reduce (cut) the bass (low) response somewhat. 3-6 dB should be fine (don’t do
this if you want a big, ballsy sound). A bit of mid-EQ will help make voices cut and seem loud. The
high-EQ adds brightness and intimacy.
If you are using a microphone that has minimal proximity effect (like the ElectroVoice RE-20), then
you’ll probably need to increase (boost) the bass response somewhat. 3 to 6 dB should do the job.
The same mid- and high- EQ recommendations given previously still apply.
For many applications, setting the output G
AIN
control at 0 dB (12:00 o’clock) works fine. If you are
adding a bunch of EQ (which tends to cause an overall level increase), then you may need to
decrease the G
AIN
setting. On the other hand, if you are using a fair amount of compression, you
may need to add some gain to compensate for the level lost in compression. Pick a setting that
gives you enough signal downstream, yet still keeps the C
LIP
LED from illuminating. The output
display is peak responding, so you can’t quite set levels as if it were a VU meter (which responds
more slowly).
The output C
LIP
LED monitors the output stage. Large amounts of boost and/or high signal levels
can cause C
LIP
indications. If this occurs, lower the signal level via the G
AIN
control.
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Содержание 527E
Страница 1: ...527E Voice Processor User s Guide 527E...