Voice production in singing and speaking, based on scientific principles

A systematic account of the anatomy and physiology underlying human voice production, explaining respiratory mechanics, laryngeal structure, and the muscular and cellular actions that generate speech and song. The text uses scientific observation and illustrations to contrast normal and diseased laryngeal appearances, examines psychological influences and vocal hygiene, and links principles to practical instruction. Material progresses from basic cellular and muscle physiology to applied guidance for healthy, efficient voice use in both speaking and singing.