elysia mpressor Dual-Channel Creative Compressor - Manual (Page 26)

26 settings - frequency compression
The external sidechain also makes it possible to
apply frequency dependent compression. This
means that the compressor selectively reacts
stronger or weaker to certain frequencies.
One of the most typical applications of this
technique is de-essing: The input signal is du-
plicated to a separate buss before the mpressor
and then fed into an equalizer that raises the “S”
sounds and lowers all other frequency areas.
This processed signal is then send into the ex-
ternal sidechain input of the mpressor which
will only react to strong “S” sounds as a result.
Depending on the settings of the external EQ,
it is also possible to use combinations of nor-
mal compression and de-essing. This can be
achieved by only boosting the frequencies of
the “S” sounds without cutting anything else.
Another variant is to only lower the bass area
on the external EQ so that these frequencies
will not dominate the compression process so
much anymore, which will result in an increase
of overall loudness.
Especially if you process a complete mix that
has lots of energy and strong impulses in the
low frequencies, you might face the problem
that the mix starts to pump, because all signals
are compressed according to the trigger of the
dominant bass.
If this is not what you are looking for, set up a
frequency dependent compression scenario
like this one to solve your problem.
settings
FREQUENCY COMPRESSION