Acoustic frequency combs organize sound or mechanical vibrations into a series of evenly spaced frequencies, much like the teeth on a comb. They are the acoustic counterparts of optical frequency ...

The animals’ ability to whistle while vocalizing earns them membership into a small club of creatures that can make biphonic sounds, which includes several birds species, human beat boxers, Mongolian ...

Frequency Festival runs Feb. 24 to March 1. All shows at Constellation Chicago, 3111 N. Western Ave., with $20 admission, ...

Tobacco hornworm caterpillars have no organs that resemble ears. Yet, scientists were able to figure out how they hear—and it could inspire next generation microphones.

“Have you listened to any good audiobooks lately?” It may sound weird, but that’s what some of my friends have been asking me lately. Audiobooks are more popular than ever. According to a report by ...