AER The Acoustic People pocket tools colourizer, User Manual

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sity control is far over to the left ( min , s. fig.), then the origi-
nal signal is not influenced ( flat ). Turning the control to the
right (--> mid --> max ) mixes the relevant bass and treble
mix to the original signal.
The balance control influences the
relationship between bass and treb-
le. If it is in
middle setting, bass and
treble are balanced. The tone balance is now in equation. (s.
fig. 1)
If you turn the
balance
control to the
left
(fig. 2), the bass
range is further increased, but the treble is decreased by
max. 0dB.
A turning to the right (fig. 3) affects an increase in treble
whilst at the same time reducing the bass.
In its function and signal path the tone balance is delibera-
tely designed as a somewhat „different“ equalizer . It offers a
comfortable way of giving the original signal more zip wit-
hout distorting it. Especially on those occasions, when the
equalizer has to be used to suppress resonance or feedback.
5.4.2 Enhancer
The
enhancer
built into the
colourizer
adds harmonics to
the source signal thereby creating more brilliance and clari-
ty. The
enhancer level can be adjusted
with the
intensity
control. Pressing the
off/on switch will deactivate or activate
the enhancer .
5.4.3 Equalizer
The equalizer is a parametric filter network, adjustable from
90 Hz to 11 kHz in two ranges: f1= 90 Hz – 1,6 kHz and f2=
680 Hz – 11 kHz . The ranges have been designed to meet
the special requirements of acoustic instruments, micropho-
nes and other signal sources and to allow useful and accura-
te signal manipulation in order to suppress resonances and
feedback. The filter technology ensures a constant band-
width at any selected frequency.
Note:
A parametric equali-
zer is a filter network
where all features of
a filter (amplitude,
i.e. boost or cut = le-
vel, frequency and Q
fig. 1
lev
el
max
min
mid
balance in middle
frequency
in
tensit
y
1 kHz 100 Hz 10 kHz
(flat)
lev
el
balance in left position
frequency
in
tensit
y
fig. 2
1 kHz 100 Hz 10 kHz
max
min
mid
fig. 3
lev
el
frequency
in
tensit
y
balance in right position
1 kHz 100 Hz 10 kHz
max
min
mid