Xaoc Devices Batumi - Manual (Page 3)

frequency rate (from 0.01 Hz to
100 Hz). In
free
mode, all the slid-
ers define the frequency rate. In
quad
and
phase
mode, sliders 2–4
define the phase shift. In
divide
mode, sliders 2–4 define the multi-
plication of the master period.
To manually set the frequency
rate more precisely, use the
zoom
mode, described in paragraph 6.
The
frq
/
ph
/
div
socket 2 allows
the corresponding slider param-
eter to be voltage controlled (1V/
oct.). Expected voltage amplitude
is 10 V and the extended frequency
range 53 minutes to 500 Hz may
be obtained.
side note
: Going
above 100 Hz you can expect the
waveforms to be less precise and
the output amplitude lowered.
The
reset
/
sync
socket 3 is an
user-defined trigger input that
can serve as either cycle reset or
external tempo sync. Details to be
found in paragraph 5.
The
sine
socket 4 outputs a sine
waveform (–5 to +5 V). In quad
and phase modes, the sines are
shifted in relation to each other.
The
saw
/
asgn
socket 5 outputs
either a default upwards saw
waveform (–5 to +5 V) or one
of the user-selectable shapes,
described in paragraph 7.
The
square
socket 6 outputs a
square waveform (–5 to +5 V).
The LFO sync mode toggle section
6 allows you to set the four oscil-
lators to run free or synced to the
master, as follows:
1. FREE LFO MODE
To enter this mode, click the
central button until the red,
free
LED lights up.
Now, any of the four LFOs works
independently.
2. QUADRATURE LFO MODE
Click the central button until the
yellow,
quad
LED lights up.
The first LFO is a master
controlling the frequency for all
the remaining LFOs, then each
subsequent LFO generates a wave
that is 90º shifted in relation to the
preceding one (90º, 180º, 270º).
In this mode, sliders and control
inputs for LFOs 2–4 are not active.
3. PHASE LFO MODE
Click the central button until the
yellow,
phase
LED lights up.
Similar to quadrature mode, but
allows the phase shift to be set
arbitrarily.
Sliders 2–4 and
freq
inputs are
active.
reset
/
sync
2–4 inputs are
not active in this mode.
a tip
: In
phase
mode, patch one of
the LFOs to control the phase shift
of another. Stacking 2 or more
LFOs results in very complex,
interesting waveforms.
4. DIVIDE LFO MODE
Click the central button until the
blue,
divide
LED lights up.
LFOs 2–4 are synced to the first
(master) one and their frequency
rates are subdivided. Sliders 2–4
define the multiplication ratio.
Resulting cycle rates can be 2, 3, 4,
8, 16 or 32 times slower than the
primary, master LFO’s cycle.
reset
/
sync
2–4 inputs are not
active in this mode.
5. RESET & SYNC MODE
The
reset
/
sync
input can serve
two different purposes.
In
reset
mode, an incoming trig-
ger impulse resets the LFO cycle to
zero state (hard sync).
In
sync
mode (default setting) the
LFO frequency rate can be slaved
to an external clock source or
tapped via manual gate.
These modes are selectable by
the jumper
8 on the back (no
jumper for
reset
, jumper present
for
sync
).
6. ZOOM MODE
Hold the central button for a
second until the current mode LED
starts to blink. Now you can adjust
the frequency rates much more
precisely, around the central value
—as the slider travel is upscaled.
Hold the button again to leave the
zoom
mode.
7. ASSIGNABLE WAVEFORMS
The
saw
/
asgn
output can be
altered to provide other waveform
types as well. In the default firm-
ware, there are four waveform
types to choose from: saw up-
wards, saw downwards, triangle
and trapezoid. To assign the de-
sired waveform, use the jumpers
cluster
9 on the back, according
to the legend printed nearby.
FIRMWARE UPDATES VIA USB
This does not end here. There are
some alternate firmware revisions
planned, allowing i.e. different
waveforms to be assigned. The
popular Mini USB standard port
10 allows an easy and straightfor-
ward update procedure. Detailed
instructions will be bundled with
the firmware package avail-
able online.
caution
! Orient the
update
jumper 11 in the ‘on’ state
(jumping the left 2 pins) only while
updating the firmware! Otherwise
orient to the ‘off’ state (the right
two pins).