Crumar Spirit - Page 27

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SHAPER y
Mooa
.0.
~~ .. ~
KBH~ ~T
The MODE switch determines how the Shaper will respond to gates:
'
FREE causes the shaper to act like a free-running low frequency oscillator.
The output in th is case is symmet r ical around zero volts, like Mod X triangle
wave output. This lets you modulate tone oscillator pitch w it h Y without
getting an i rritating change of pitch "cente r. " (Pitch goes both above and
below pitch center symme t rically).
KBD HOLD al lows the shaper output to remain at zero until a gate goes on.
When gated,
the output rises and holds at a maximum level as long as the
gate is on. The rise time is a f unction of the interaction of RATE and SHAPE
controls; that is: "How fast do I go, and at what slope?"
I n RESET the Shaper output. goes through a single cycle of rise and fall (no
hol d), starting at zero. Each time the gate is reset, the shaper output is
clamped to zero, and starts again. (Note: SHAPER Y is always in the "multi-
ple trigger" mode, regard l ess of the setting of the TRIGGER section switch.
Consequently, every time you hit a key, the Shaper wi l l reset to zero in
thi 's mode.)
RUN is an "uncond i tional" mode; the rising segment of a single cyde is
always 100% completed whel1 a gate is applied. Subsequent gates will not
restart the envelope until it h as completed the rising segment of its cycle.
T his mode le ts you take your hand from t ih e keyboard (and use elsewhere!)
while the Shaper Y secti on contj,nues to do something for you - - for
inst ance, raising the Filter cutoff.
WHEEL DESTINATIONS
MOD X SHAPE X SHA~eR y
TO: WITH Y TO:
ON
·0· 0 ·0·
OFF _ .-II,.T. OFF "ILT.
• ' . U •• L
OBC. • • 'f'ILT. esc. • • LFO
A+e U+L A+e R . ATE
o a c. OtIC.A oec. O S CS
A ·RWM B RWM
WHEEL DESTINA T IONS are th ,e places that modulation signals are routed
after passing through the MOD X and SHAPER Y wheels.
MOD X TO: routes the signal selected by the MOD SOU RCE switch that
passes through the MOD X wheel to various contro l inputs. The (six) switch
positions from left-to-right send the X signal tQ: (1) OFF (nowhere); (2)
OSC A + 8 (freque n cy control input, both oscillators); (3) OSC B (Osc B
frequency control i nput); (4) OSC A RWM .(rectangular width control, Osc
A); (5) FI L T U + L (cutoff frequency control input, both filters); (6) FI LT
U (Upper filte r cutoff frequency control input).
SHAPE X WITH Y switch, when ON causes the X signal to be enveloped by
the Y sigl1al. The MOD X wheel setting will then determ ine the maximum
size t hat X can be, and Y will shape X within tha t limit. Typical applications
are "enveloped" vibrato, or vibrato that dy namica1 1y changes its depth
(automatically) .
SHAPER Y TO: routes the signal coming from the SHAP t: :R Y wheel to va-
rious control inputs. The (six) switch positions from left-to - right send the Y
signal
to: {I) OFF (nowhere); (2) OSC B (Osc B frequency control input);
(3) OSC A + B (both Oscs frequency cont r ol inputs); (4) OSC B RWM (Osc
B rectangular width control input); (5) LFO RATE (L FO frequency control
in p ut); (6) FI L T L (Lower Filter cutoff frequency control input).