reply from dieter RE sensor kbd
2002-01-10 by andrewdalio
Dear gang, Here's the reply I got from Mr. Doepfer RE what the features will be (so far) on the sensor keyboard. Realize that this is still in the planning stage, so we really need to let them know that we want this one to be built! -andrew bunny Here is the current state (so far only in our heads, we only designed the touch electronics so far) of our sensor keyboard discussions (so far only one rotary control per key are planned): about 2-3 octaves (i.e. about 25-37 keys) first LED for each key (to show the state of the key on/off) gate output socket for each key (outputs the LED state as a gate signal) second LED for sequencer step display control (rotary potentiometer) for each key CV output for each key (position of control knob defines voltage, a kind of 25-fold CV source) general features/outputs: CV out 1 (quantized output that corresponds to the key like a standard keyboard, 1/12V resolution per tone) CV out 2 (this outputs the control voltage of the active key that is adjustes with the potentiometer controls) CV out 3 (after touch voltage, derived from the pressure sensor below the keyboard) Gate out MIDI out (by the way the MIDI out would not increase the price very much so that we will add this in any case) In "keyboard mode" the outputs are used as described above. CV1 is the normal CV output. CV2 can be used to create arbitrary scales of completely random CV voltages assigned to the keys. In "analog sequencer mode" CV2 and Gate work like the output of a analog sequencer. The keys can be used in this mode for different settings: e.g. to turn on/off single steps - or - to define the first/last step of the sequence - or- to define which steps of the sequence are played (only those steps are active where the keys are touched, the remaining steps may be skipped or played with a pause). In "digital sequencer mode" a sequence can be recorded into the memory by playing the keys. In play mode both CV1 and CV2 can be used (remember: CV1 is the "normal", CV2 the "free scale"). For the sequencer sync to (hardware) clock or MIDI clock is possible. Unfortunately most of these features would be possible only monophonic. This is why I would tend to a monophonic keyboard. But in the normal "keyboard mode" 4 voice polyphonic should be no problem. Best regards Dieter Doepfer Doepfer Musikelektronik GmbH http://www.doepfer.de email: hardware@doepfer.de