ATEIS UAPg2 - Manual (Page 187)

UAPG2 MANUAL
Version EN.24
187
Expander
An expander works in an opposite fashion than the compressor, the threshold is set and any part of
the signal dropping below this threshold will be affected by the expander and this level will be raised.
The expander therefore like the compressor balances out the signal making it sound more
professional. The expander allows having a signal with a bigger dynamic range.
The only module within the 'Expander' folder is a simple expander of the same 'Feed-Forward' type
like the compressor:
The control window of the 'Expander' module is opened by a double click on the icon in the 'UAPG2'
design window and appears like this:
Expander Parameters
Parameter Range Comment
Ratio x:1 0.10 to 1.00 Sets expansion ratio.
Threshold (dB) -60.0 to
+20.0 dB
Sets the threshold level above which expansion begins.
Threshold range (dB) 0.0 to 40.0 dB Sets the range of level, in which the ratio gradually alters from 1:1
to the value set by the ratio parameter (soft knee function).
Attack time (ms) 0 to 1000 ms Sets the time it takes to respond to the input signal.
Release time (ms) 0 to 1000 ms Adjusts the time to stop the gain reduction. .
Gain reduction (dB) 0.0 to
-25.0 dB
Reflects the current amount of gain reduction.
Bypass On/Off Bypasses the expander's function.
Soft knee On/Off Enables/disables the “Soft Knee” mode.
Expand LED, lit red Indicates that the function is active.