Arturia ARP2600 V, User Manual

Page: 63 / 95

ARTURIA – ARP2600 V – USER’S MANUAL 61
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The band-reject (band-reject filter or notch) eliminates the frequencies inside a
band of frequencies. This filter is above all else interesting when we want to vary
this band of frequencies (with the “frequency” on the ARP2600 V filters or the
modulation of an LFO on this same parameter). You will thus obtain a sound close to
a “phasing” effect.
These four types of filtering are often used on analog synthesizers.
A second setting to compliment the cut-off frequency: the resonance .
(you will also find it called “emphasis” or “Q” – for Quality of filtering)
The resonance amplifies frequencies close to the cut-off frequency. The other frequencies remain-
ing are either unchanged (below the cut-off frequency) or reduced (above the cut-off frequency).
On the ARP2600 V, you can increase the rate of resonance through the “resonance” potentiometer.
When you increase the resonance, the filter becomes more selective, the cut-off frequency is am-
plified, and the sound begins to “whistle” at the cut-off frequency.