Waldorf Edition - Manual (Page 63)

Waldorf Edition
User Manual 63 Waldorf
D-Pole Filter Modul
Introduction
The Waldorf D-Pole is based on the filter algorithm used in the Waldorf Microwave
II. This filter algorithm makes D-Pole behave and sound like an analog filter. In other
words, although D-Pole is a piece of software that runs on your computer, you will
hardly ever get the idea that it is in fact a digital filter. You can of course use D-Pole
to achieve effects that analog filters cannot create. When developing D-Pole we de-
cided not to suppress these digital side effects, as they add nicely to the versatility of
D-Pole. D-Pole ’s filter algorithm can create resonance until self-oscillation! Just feed
it a short audio signal and the filter will oscillate “forever” (or until you decrease re-
sonance). In contrast to the Microwave filters, D-Pole does not allow for a feedback
of more than 100%, as this would not be a useful feature for a constantly operating
software plug-in.
Another D-Pole component is its amplifier. It has the obligatory volume and panning
controls and additionally offers you an overdrive effect.
D-Pole features a control that lets you reduce the sample rate used to read the input
signal. This allows for interesting digital effects.
There is a modulatable ring modulator that you can use to mix up the frequency ran-
ges of the signal in- and output.
D-Pole’s stereo delay provides the necessary impression of space and can also be
used for Karplus/Strong type synthesis.
Another D-Pole highlight is its integrated LFO. It can be started in sync to the audio
signal and offers a maximum frequency of more than 7000 Hz. This probably makes
it the fastest LFO currently available in a digital system.
Last but not least: the envelope follower. It is rarely found in modern systems alt-
hough its function is simple and efficient. We felt that it was our duty to revive it in
D-Pole.
Have fun using the Waldorf D-Pole.
Your Waldorf Team