Data Far And Near Adjust - Zeppelin Design Labs Altura Theremin User Manual

You can set the key and scale in which the Altura will play. This restricts the MIDI note numbers to those
within the selected key signature. See the KEY and SCALE sections, below.
Another trick the Altura uses to stabilize note selection is what we call Articulation. This limits how
frequently the device will update the note being played. See "Articulation Adjust" on page 22
below.
In Function 6 - X-Y Mode, the right sensor emulates the left sensor and transmits user-defined control
change data. See "Function 6: X-Y Mode" on page 19 below. In this capacity, your Altura may
require a very low value for Articulation for the right sensor to perform well. See "Articulation Adjust"
on page 22.

5, 6. DATA FAR AND NEAR ADjUST

The DATA knobs have slightly different functions depending on the FUNCTION knob setting. These
behaviors are summarized in this section, but please see the respective Function sections below for
more details.
Function 1 – Pitch Bend: The DATA FAR knob controls the size of what we call the Neutral Zone, where
the pitch remains unbent. The DATA NEAR knob sets the maximum semitones of bend when used with
a Macchiato Mini Synth.
Functions 2 – 6: The left sensor behaves much like the Data slider found on most MIDI controllers. You
use the DATA knobs to set the maximum and minimum values produced by the slider. DATA NEAR sets
the limiting value the Altura will transmit when your hand is near the sensor – any value from 0 – 127.
DATA FAR sets the limiting value far from the sensor, also any value from 0 – 127. By swapping values,
you can make the Altura transmit values that either ascend or descend. Adjusting the DATA knobs does
not cause any Controller message to be transmitted. No message is actually sent until you stick your
hand in front of the sensor.
For Function 7: Channel Select, the DATA FAR knob sets the MIDI Send channel. The DATA NEAR knob
has no function.
When you use the left sensor to send a MIDI control change message, that control value will "stick"
even when you change functions. For example, you might wave your hand to set Modulation = 30 and
then change to Function 5 to work with Portamento effects. The Modulation effect will remain active at
value 30. However, when you return to Function 2 – Modulation, the old values of Modulation Near
and Far will be overwritten by the current knob positions. You will continue to hear modulation at value
30 until you use your left hand to change it, but the Near and Far limiting values may have changed!
Be aware of this behavior in a live performance situation.
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