Scratching surface
by alexarje • Monday 6 July 2009 • Uncategorized

A few years ago the EU project TAI-CHI (Tangible Acoustic Interfaces for Computer-Human Interaction) explored using acoustic cues from tapping and scratching on surfaces to control devices. It was interesting to see that they managed to create fairly advanced “touch screens” using only 1-3 contact microphones attached to the surface. Here is a nice...
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