An MIT team has designed an “acoustic fabric” woven from a fiber composed of a “piezoelectric” material that produces an electrical signal when flexed or mechanically deformed, causing the fabric to convert sound vibrations into electrical signals can. Photo credit: Greg Hren Inspired by the human ear, a new acoustic fabric converts audible sounds into electrical signals. Having trouble hearing? Just unfold your shirt. That’s the idea behind a new “acoustic fabric”…