The Sound Barrier is a four-episode series where we explore the limits of hearing and the ways we can break through.

Brain activity synchronizes with sound waves, even without audible sound, through lip-reading, according to new research published in JNeurosci. Listening to speech activates our auditory cortex to ...

Video cameras continue to gain widespread use, but there are privacy and environmental limitations in how well they work. Acoustical waves are an alternative medium that may bypass those limitations.

Oct. 12, 2012 -- The sound of nails on a chalkboard or screams may send shivers down the spine for a good reason. A new study shows annoying sounds trigger a highly emotional response in the brain.