Buchla 200e series, User Manual

Page: 23 / 78

Description - model 222e Kinesthetic Input Port
222100729
The 222 Kinesthetic Input Port senses a performer’s gestures and transforms
them into control voltages for subsequent control of 200e systems. Two
classes of gesture are sensed – one is the touch of a surface, and the other is
the position of the hands in space. The two will be discussed separately, as
they are somewhat independent.
Tactile sensor
The tactile surface consists of 27 individual keys, whose responses can be
programmed by the user to generate pulses, programmed control voltages,
pressure and impact responses. Some keys can respond to the location of a
finger along the key, and two are sensitive to 2 dimensions. Two are
dedicated to control of the spatial sensors; their function will be described. All
keys contain LED’s to indicate their status. Programming is accomplished with
the aid of an LCD, whose states are changed with a “page” key.
The first page deals with singular pulses:
Puls 1:Ta 2: d
3: u 4:Tc 5:Tg
Use the cursor key to select the desired pulse, the nature of the response
you’d like, and the key you’d like to serve as the source. A blank in the first
position of the field causes a pulse to be delivered upon touching the key; a T
causes a toggled response, with alternate touches reversing its state. The
second position selects the actuating key by either turning the data wheel or
by simply touching the desired key.
The next page is one of four “radio” pages (named for a scheme for selecting
stations on prehistoric car radios).
Radio:6 ky:g Loc
CV1:334 CV2:999
Select the desired page with the data entry knob. Cursor into the “ky” field
and capitalize it with the data entry knob to display the keys assigned to the
current page. Enable desired keys by simply touching them. Disable them
with a second touch. To escape from this mode, cursor to the “ky” field and
with the data entry knob, decapitalize it.
The next field provides a choice of voltages that will be presented at the green
jacks. Select between Loc, Prs, and Imp (location, pressure, Impact).
A control voltage varying between 0 and 9.99 volts will appear at the violet
outputs (the decimal point is not displayed). Cursor into this field to change
the programmed voltage. The next field allows a second voltage to be