This is the first gestures controller prototype for this research.
Wacom says that the only tablet with ‘multiple-pens’ possibility was the intuos2 serie. We customized an intuos2 A4 with a screen over it: Then we have a simple to make, polyphonic, (deep) expression sensitive screen.
Even if some DIY touchscreen could be pressure sensitive (‘DSI’ on : Getting Started With MultiTouch – NUI Group Community Forums ), they might not be as easy to built and to use. And even if it is now possible to get the ‘finger-size-area’ on the iPad (kind of expression sensing), this is not as nicely sensible (low resolution of the capacitive sensor, and only updating when sliding fingers).
Beside the fact that we have to hold two pens (not that easy for the left hand), instead of directly touching the screen with all the fingers, this DIY screen have some interesting Wacom possibilities for music : Deep pressure sensing with choice of different types of nibs, possibly more precise movements than with the fingers, sensitivity to the orientation of the pens.
Details about the building: