Van Der Pol Filter - ENSONIQ DP/4 Musician's Manual

Section 4 - Algorithms
VAN DER POL FILTER
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00 - VandrPol Filter adds synthetic high harmonics to the input signal, brightening the overall
sound. This newly designed algorithm is most often used in the studio for vocalists, but feel free
to experiment with this algorithm using your favorite instrument as well. This algorithm features
prominent transient enhancement which makes
it
ideal for "plucked" sounds. The filter in this
algorithm operates on the signal prior to enhancement. Set the filter to enhance the frequency
region that you desire. Then mix the enhanced signal with the dry signal.
The parameters available for the VandrPol Filter are:
01- Mix
02-Volume
See the descriptions under the Mix and Volume Parameters, in the beginning of this section. For
this algorithm, we recommend mid values of the Mix.
03 - HighPass Fc
Range: 4 to 8000 Hz
Controls the boost or cut of the high pass filter frequency applied to the input signal.
04 - LowPass Fc
Range: . 100 Hz to 16 KHz
Controls the boost or cut of the low pass filter frequency applied to the input signal.
05 - Filter Gain
Range: -48 to +48 dB
Because the cascade of high pass with low pass causes an insertion loss, this parameter allows
you to boost the filtered output signal.
06 - Mod1 Source
07 - Mod1 Destination Parameter
08 - Mod1 Param Range Min
09 - Mod1 Param Range Max
10 -
Mod2 Source
11 - Mod2 Destination Parameter
12 - Mod2 Param Range Min
13 - Mod2 Param Range Max
See the descriptions under the Algorithm Modulators
in
the beginning of this section.
ENSONIQ DP/4 Musician's Manual