Synthesizers.com Q169 Oscillator++, Manual, Page: 9 / 14

Q169 Osc+
The center - top section of the module is an LFO. The output of the LFO is a
sine wave and used for modulation. You'll see the LFO label several places
in the modulation section - for PWM, amplitude (tremolo), and pitch (vibrato).
Speed of the LFO is set by the knob and the range switch selects between
slow, very slow and off.
In the SLOW position, speeds range from .1hz to 20hz. In very slow position
speeds range from .01hz to 2hz.
LFO
The center - middle section of the module is an envelope generator (EG).
You'll see the EG label several places in the modulation section - for PWM,
amplitude, and pitch. This feature may be used or ignored.
Typically a gate signal patched into the gate jack will trigger the envelope,
but the LFO can also trigger the envelope by setting the first toggle switch to
LFO.
The envelope can be either Attack/Decay or Attack/Sustain/Release as set
by the AD/ASR switch. In the AD position, the envelope will trigger at the
beginning of the gate, then when the peak is reached begins decay regard-
less of the gate's status (typically a keypress). In the ASR position, the enve-
lope stays on (sustains) as long as the gate is present (typically a keypress),
then the release phase begins. Decay and release are the same speed.
A speed switch provides short and longer envelopes.
Envelope Generator
OFF
It's not mandatory to use the LFO or
the envelope generator. Don't let
their availability sway your creativity.
SLOW
VERY
SLOW
If the EG is set to trigger from the
LFO and the LFO is set for Gate
Sync on the Aid module then a
strange loop will be created.