John Ohala, a distinguished scholar in the Speech Group, has received the Silver Medal in Speech Communication from the Acoustical Society of America, or ASA. In announcing the award, the ASA cited Ohala’s work in advancing the understanding of speech production and perception, and applying phonetic principles to the study of spoken language change over time. Ohala is an emeritus professor at UC Berkeley, which he joined in 1970 as a professor of linguistics.