Abstract
SonicData is a technique for broadcasting data to
smartphones via audio streams using phone’s built-in
microphone. SonicData augments an audio stream in the
environment with nearly inaudible high-frequencies,
allowing data to be sent to any smartphone in the vicinity
using regular speakers and without any need for special
hardware and software infrastructure or handshaking
requirements. We detail the technical implementation of the
SonicData prototype, outline a technical evaluation of its
capabilities, and describe the results of a preliminary study
of its effect on the quality of sound streams. We designed
four interaction techniques that highlight SonicData’s
potential as a complementary technique for broadcasting
data to smartphones.
Refereed
No
