William J. Cavanaugh, FASA, INCE (Bd. Cert.), is a founding partner and senior principal emeritus of Cavanaugh Tocci Associates, Inc., an acoustical consulting firm based in Sudbury, Massachusetts. His distinguished career as an acoustical consultant to the world's leading architectural and engineering firms and as a teacher at architectural schools spans more than four decades. He has served as president of both the National Council of Acoustical Consultants and the Institute of Noise Control Engineering. He was awarded the prestigious Wallace Clement Sabine Medal, the Acoustical Society of America's highest honor in architectural acoustics, in 2006.

Gregory C. Tocci, FASA, INCE (Bd. Cert.), a registered professional engineer, is founding partner, president, and chief executive officer of Cavanaugh Tocci Associates, Inc. His extensive background and experience as a mechanical engineer brings important insights to solving mechanical system noise and structural vibration problems in buildings. He has served as president of the Institute of Noise Control Engineering and the National Council of Acoustical Consultants, and is a co-chair of American National Standards Institute Committee S12 Noise, Working Group 44 on Speech Privacy.

Joseph A. Wilkes, FAIA, is a registered architect and the editor of the five-volume Encyclopedia of Architecture (Wiley). He has taught at the schools of architecture at the University of Florida and the University of Maryland and has served on the Building Research Advisory Board of the National Academy of Sciences.