Dave Smith Instruments POLY EVOLVER KEYBOARD - Manual (Page 27)

xMonox Mono – Both channels mixed to the center – also useful
when only using one output
xxRLxx Reverse Stereo 1 – Right channel panned somewhat left,
Left somewhat to the right
xRxxLx Reverse Stereo 2 – Right channel panned mostly left, Left
mostly to the right
RxxxxL Reverse Stereo 3 – Right channel panned fully left, Left fully
to the right
High Pass Filter
Frequency: 0…99 – Sets the cutoff frequency of the four-pole highpass filter. When
the P
RE /P OST switch is on (lit), the highpass filter is inserted before the analog
lowpass filter, and only affects external audio input. When the P
RE
/P
OST
switch is off
(unlit), the highpass filter is placed after the analog lowpass filter and VCA (but before
the Delay) and filters the Evolver’s audio accordingly. Refer to the Signal Flow
diagram on page 13 for details on the signal path. There are two separate highpass
filters, one for each channel, and they are controlled in tandem.
Remember that any of the modulation sources can be routed to control the Highpass
Filter. For example, Envelope 3 can be dedicated to the Highpass.
Tuned Feedback
Feedback is implemented via two identical tuned delay lines, one for each channel.
See the diagram on page 13 for details on the signal path. Since the delay is tuned, it
can be played by modulating the feedback frequency, from the sequencer or other
sources.
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