SOMA Pulsar 23, User Manual

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PULSAR • 23 USER MANUAL
FX EFFECT PROCESSOR
Pulsar contains a two-channel effects processor. The first chan-
nel is different types of delay, the second is reverb. FX has three
operating modes:
BPF (band-pass filter) – Channel 1 is a 1-tap delay with an ad-
justable band-pass filter. Channel 2 is Classic Hall.
DBL (double) — Channel 1 is a 2-tap delay. Channel 2 is a variation
of the Classic Hall.
PCH (pitch) — Channel 1 is a 1-tap delay with adjustable pitch
shifter in the feedback. Channel 2 is Hall with pitch shifter in the
feedback. Both pitch shifters are adjustable \- 1 octave.
Setting pitch shifters takes place in opposite directions, i.e. when
the frequency of one increases, the other decreases.
The FX module has the unique ability to modulate the clock of
the entire DSP processor along with the AD DA converters. This
means that the speed of the entire processing, together with all
the code, can change 7 times! This creates unique sounding effects
that cannot be reproduced in this form using a virtual change
of the sampling frequency and similar purely software solutions.
The outputs of both channels are mono. However, in DBL mode,
a stereo mode is possible when the mono outputs become the
left and right channels to which a stereo mix of double delay and reverb is fed. To enable
stereo mode, the mode switch must be in the DBL position, and a voltage greater than
5 volts must be applied to the MAD! \ stereo icon \ pin.
DLY REV (delay reverb) switch — determines which of the FX channels the submixer
output will be assigned to (FX knobs in the synthesis modules).
BPF DBL PCH
switch — determines the operating mode of the FX processor.
BPF (band-pass filter) — Channel 1 is a 1-tap delay with an adjustable band-pass filter.
Channel 2 is Classic Hall.
DBL (double) — Channel 1 is a 2-tap delay. Channel 2 is a variation of the classic Hall.
PCH (pitch) — Channel 1 is a 1-tap delay with adjustable pitch shifter in the feedback.
Channel 2 is Hall with pitch shifter in the feedback.
CLIP indicator — lights up when overloading the input of the AD converters of the DSP
processor.
MAD!
/ Stereo icon / pin — applying voltage to this input in BPF and PCH modes caus-
es madness in the FX processor; in DBL mode it activates stereo mode. To permanently
activate these modes, use the +10V pin.
TIME knob — sets the delay time.
MOD
pin
associated with the TIME knob — CV input controlling the TIME parameter.
MOD pin associated with the CLK MOD knob — CV input driving the DSP clock.
CLK MOD
(clock modulation) knob — This determines the modulation depth of the DSP
clock with the signal received at the MOD contact.