Prof. Emeritus Robert A. Butler, whose research focused on hearing—particularly involving the localization of sound and auditory perception—died Feb. 5 after a brief illness. He was 98 years old.

Picture this test: You stand with your eyes closed and arms stretched in front of you while a voice from a stationary loudspeaker located two meters away narrates a series of sentences. Then you're ...

The ability to pinpoint the origin of a sound in space relies on highly precise neural computations of binaural cues. Two principal cues—interaural time differences (ITDs) and interaural level ...