Advertisement
3.8.23 Multi Compressor
This multi-band compressor combines filters and compres-sors. The
filters split the incoming audio signal into four frequency bands:
low (below 200 Hz), midlow (200.. 1000 Hz), mid-high (1000 ..
5000 Hz) and high (above 5000 Hz). Each band has a dedicated
compressor, which is similar to a traditional, single band compressor.
With standard compression, the compressor responds to dynamics changes
happening in any frequency band. Multi-band compression can give more
subtle effects, because dynamic changes in one frequency band do not
influence other frequency bands. For example, it is possible to compress
a drum kit's kick drum, but leave the cymbals untouched.
The controls are like those of the e
C
(see above), except that
aSy
oMPreSSor
each band has its own g
and r
controls. The minimum r
setting
ain
atio
atio
gives no compression. At the maximum setting the compressor behaves like
a limiter. g
can even out the levels for the different bands. For example,
ain
if one frequency range is compressed heavily, you will probably want to
turn up its g
to compensate. As with the e
C
, the o
g
ain
aSy
oMPreSSor
ut
ain
parameter can compensate for any overall loss of volume.
Each compressor analyses the incoming signal to decide when to apply
compression, but you can influence this process with the a
and
ttaCK
r
parameters. a
determines how fast the compression algorithm
eleaSe
ttaCK
KORE 2 – 167
Advertisement
