Symetrix 528 - Page 27

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The soft-knee transition characteristic of the interactive processor allows the use of
m uch hiirher comp / limiter ratios with mu ch lower thresholds. The expander's rapid rise
below its threshold , co m bined with the compres s or ' s smooth transition throuirh its
thresho l d, m akes processinir to iro unnoticed. Use this application to " tiirhten up " vo i ce -
overs. The expander eliminates noise and adds " punch ."
COM P
T
HRESHOUl
00
0 ·RA TIO
EXP
THRESHOLD
B YPftSS
0
Fiirure 4. 9A Settinirs for "tiirht" control of
announce mic .
528 lloi<t Proct_. txr<a., allPI.CDe ) YI A IIPI. C DII )
lt . ... .
· •· I
t9 JAIi 97 lS: 36 :
z ·
7
· lt , tt . -------------~~----
I
/
·SU · 4,U ·3 U · Zt .•
· IU U
FilrW'O 4.9 B Transfer function prov i ded
by settinirs shown at left .
The ex p ander may be used without the compressor to remove backirround noise. Be sure
the EXPAND THRESHOLD is set low enouirh to allow even the lowest level speech sounds
to p ass . •nd the COMP RATIO is set to 1 ( so the comp / limiter is essentially out of
circuit).
COM P
THRESHOUl
0
0
B YPftSS
0
0
RATIO
EXP
THRESHOLD
PilrW'O 4 .l0A Settinirs for expandinir.
Im llol<• Proc enor
i tt .
tx P<OIIP A IIPl. (dJ,,) YI ANt lCil\l)
t9 J AIi 97 15 :H: :4
: ...
I
//
l- 1• . ..
I
· ?t , tt
/7
·3t, tt
/
. .. . ..
~4=-
· St . tt
I
., ... .
l
. .. ..
·) t.t
. . .
·It . ♦ ...
Piirure 4.l 0B Transfer function
provided by settinirs shown at left .
7
U tl
Likewise, the com p/ limiter may be used without the expander to control only the upper
end of the dyna m ic ranire . For ireneral purpose overall irain c ontrol, use compression .
Set the RATIO between 2:1 and 3: 1, with a COMP THRESHOLD sett inir that results in 6dB to
lOdB
attenuation.
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