5
block
diagram
Keep in mind that adjusting this will make
panel dB scale
relative to what you set.
PhAsE rEsPOnsE
Just like any other analog or digital filter,
Katowice introduces some phase shift to the
signal. In general, the higher the filter order
(i.e. the steeper the amplitude response), the
more phase shift is added resulting in a slight
delay.
In Katowice, this delay varies from 0 to 3.5-
4ms and depends on the frequency. There is
also some additional fixed phase shift intro-
duced by the AC-coupling capacitors, which
mostly affects very low frequencies.
The phase shift (delay) is generally inaudible
unless you mix your processed signal with
the original signal. However, modulating
the corner frequencies of filters (through
modulation of either the mid freq or mid
width parameters) will affect this delay as
well. The side effect is a phenomenon simi-
lar to the Doppler effect wherein you hear a
slight change of the signal's pitch. Similarly
to modulated all-pass filtering networks, this
effect may be exploited creatively for addi-
tional animation of your sound. •
fig. 3: block diagram
MID
VCA
VCA
VCA
INPUT
three-way
filter
network
HI
LOW
SUM
MID WIDTH MID FREQ
R
L
band gain CV
inputs
