Gernot Hoffmann	2   Dancing Marionette
Cover Page Title Page Dancing Marionette Learning Marionette Image Processing Computer Graphics Geometry Scanner Photo Equipment Machines and Tools Electronics Info + Help + Print Links Documents	1988-1996 we developed in a group of twelve students a life size marionette which dances in real time, according to any kind of music. The mechanical system consists of eight string winches, a turntable and two linear drives for XY.   Additionally we have two floodlights with two servo axes each. Five Computers of types 286..486, one signalprocessor and two XY-controllers are cooperating in the network. The data transfer is performed by a digital state bus, an IEEE-488 bus and plenty direct analog connections. The loudness of the music is analyzed by Terhardt´s Fourier-Time-Transformation. The pulsating spectrum is parameterized and delivers up to 12 basic rhythmical patterns. To these we assign dancing eigenmotions, which form a kind of function system. The transform into machine coordinates is straightforward. One should not forget the esthetical sensitivity of human observers and the cultural background of dancing. Hoffmann, G.: Musikgesteuerte Marionette. Automati- sierungstechnik 42 (8/1994), p.356-365. (Documents)
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