Letizia Chisari

VARI-SOUND: A Varifocal Lens for Sound

Centuries of development in optics have given us passive devices (i.e. lenses, mirrors and filters) to enrich audience immersivity with light effects, but there is nothing similar for sound. Beam-forming in concert halls and outdoor gigs still requires a large number of speakers, while headphones are still the state-o…