elysia alpha compressor Dual-Channel Analog Mastering Compressor - Manual (Page 27)

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Even when there is nothing to compress from
time to time, your productions can still benefit
from the alpha compressor, as the combination
of the M/S matrix and the audio filters makes a
very nice tool for influencing the stereo spec-
trum.
For this purpose the compressor is switched
into M/S mode and the audio filter of the side
channel adds 1.0-1.5 dB at a center frequency of
approx. 1 kHz. The gain controllers of both chan-
nels are at 0 dB. These settings cause a boost of
all frequencies above 1 kHz in the side channel,
which intensifies the spatial perception as the
room reflections become more distinct.
The lower frequencies, however, are not of that
great importance for spatial perception. Of
course simply increasing the level in the side
channel can be used to achieve a (broadband)
change in the stereo spectrum, too, but the vari-
ant shown here offers much more differentiated
options because it is frequency-dependent.
settings - stereo enhancer
STEREO ENHANCER
settings