Sound Performance Lab Audio Equalizer 9629 - Manual (Page 6)

S-Reduction controls the intensity of the de-essing effect. The LED-display
shows the gain reduction of S-frequencies in a range between 0dB to -20dB
in 2dB steps.
S-REDUCTION adjustments between 3 and 7 have proven to create best
results in practical applications.
AUTO-THRESHOLD activates a new function that automatically readjusts the
threshold when the input gain varies due to varying distances of the speaker
to the microphone. The de-essing remains on a constant level when Auto
Threshold is activated (status-LED illuminated).
Especially with untrained speakers or in live applications the distance to
the microphone sometimes varies dramatically. De-essers operating with
common compressor technology change their de-essing intensity with
varying input levels. As a de-esser should be used right after the microphone
preamplifier and in front of a compressor/limiter, common de-essers
produce negative side effects on the vocals such as speaking through the
nose or lisping.
The Auto Threshold function gets rid of all these problems. No matter how
much the input level varies, the de-essing is proportionally the same and a
following compressor/limiter works better and more efficient.
6
Control Elements
S-Reduction
Auto-Threshold
1
1
2
2
3 4