WANT:
“velosynth is an open-source bicycle interaction synthesizer. it interprets the speed and acceleration of a bicycle into expressive audio feedback. this feedback loop helps to increase awareness of the cyclist within the transportation environment — much to the same way one can both hear andsee a vehicle approaching. it is designed for user modification, completely open-source, and released under creative commons share-alike license.”
(via The Kickstarter Blog)
