Doepfer Drehbank Midi Control Box (device no longer available) User Manual

Page 30

U S E R I N T E R F A C E

Edit Control: Value

For property variables this is the current or default value. If not on property, this
parameter is transmitted to Drehbank but not yet used. For the future this may be
used as default value, so set it as default e.g. as the center value for Panorama
Controllers or 100 for volume controllers having a headroom of 27 digits.

Remark

For variables not assigned to the Properties Dialogue this
value has no meaning !

Edit Control: Sample- Rate

This parameter sets the sample rate of the control knob. It is shown as the cycle
time in which the control knob is scanned for its value. Each new value causes the
Drehbank to send out the Midistring. If the device that you control with the
Drehbank is not able to process the data coming from the Drehbank decrease
this value to lower the data stream (e.g. if the message "MIDI buffer full", "MIDI
overflow" or similiar appears in the display of the device controlled by the
Drehbank).

Edit Control: Threshold

Here you can set the threshold for the control knob. A new Midistring will only be
sent if the new value of the control knob differs more than the threshold value.
Increase this setting to supress redundant Midi data caused by minimal
fluctuations. Higher settings lower the Midi data stream and suppress undesired
minimal fluctuations. The step value (see above) cannot be smaller than the
treshold value.

Edit Control: ADC_GND/ADC_REF

The values of ADC_GND and ADC_REF define the working range of the internal
ADC (analog-to-digital converter). The 64 controls of the Drehbank cover a voltage
range of 0...+5V as the rotary potentiometers used are connected between GND
and +5V. The setting for ADC_GND or ADC_REF should be changed only if a
external control voltage or foot controller is used that covers not the whole voltage
range of 0...+5V. If the maximal or minimal data values cannot be reached the
values for ADC_REF or ADC_REF may be changed to obtain the complete data
range. Especially many foot controllers do not cover the whole voltage range as the
potentiometers inside do not turn the full cw-ccw range but only a part of the full
range.