Omnitronic CL-166 Mode D'emploi page 19

so that music signals can pass but the noise is faded out. In OFF position, all signals are allowed. By turning
it clockwise only signals over the threshold are allowed to limit the noise signal level.
How to set a proper gate level for most applications? Turn off the GATE Threshold. Turn on all instruments
hooked to this unit but no input is allowed. Increase the Threshold, the GATE LED comes on. This is helpful
in removing hiss from tape, guitar amps etc.
4. RELEASE Control
To optimally adapt the gate to the program material, adjust the Release-control to determine the rate at
which the gate closes once the signal falls below the threshold. This control can be adjusted from 0.02 to 2.0
seconds. Use faster release values to process percussive material with little or no ambience. Use slower
release values for signals with long decay or heavy ambience.
5. GAIN REDUCTION LED Meter
Displays the attenuation in dB.
COMPRESSOR / LIMITER SECTION
The task of Compressors and Limiters is to reduce the dynamic range of the program material and to control
the overall level. It prevents signals from exceeding a given threshold level. The extent of the resulting
dynamic level is dependent on Threshold, Attack, Release and Ration settings.
6. THRESHOLD Control
The Threshold control sets the threshold point for the Compressor section. It has a range of –40 to +20 dB.
7. RATIO Control
This control determins the ratio between the input and output level for all signals exceeding the threshold
point by more than 10 dB. The control range can be adjusted form 1:1 to o o :1. A setting of 1:1 leads to no
compression, turning the control clockwise makes the sound increasingly dense. A setting of o o :1
corresponds to a limiter setting.
FIGURE A explains the comparison of compressed signals responding to various Ratio settings.
8. ATTACK Control
This control detemines the rate by which the compressor responds to the signal which exceeds the
threshold. This control can be adjusted from 0.1 ms to 100 ms. Use short Attack times for percussion and
slower times soft inaudible compression.
9. RELEASE Control
This control determines the rate that the compressor returns to unity again after falling below the threshold
level. This control can be adjusted from 0.1 to 2.5 seconds. Use short times for fast recovery and maximum
output and use longer times to avoid pumping.
19/30 10355585_V_1_0.DOC