Uniting scientists who study music, child language, human psychoacoustics, and animal acoustical communication, this volume examines research on the perception of complex sounds. The contributors' papers focus on finding a common principle from the comparison of the processing of complex acoustic signals. This volume emphasizes the "e;comparative"e; and the "e;complex"e; in auditory perception. Topics covered range from communication systems in mice, birds, and primates to the perception and processing of language and music by humans.