Sound Reproduction: The Acoustics and Psychoacoustics of Loudspeakers, Rooms and Headphones

Floyd E. Toole, PhD, is a retired NRC Canada scientist and VP Acoustical Engineering for Harman International. He has won AES Silver and Gold Medals, CEDIA and ALMA lifetime achievement awards, and the IOA Peter Barnett Memorial Award. He is a Fellow of ASA, a past president of AES, and is in the Consumer Technology Hall of Fame.

Sean Olive, PhD, is a senior fellow for Harman International. From 1986 to 1993 he was a research scientist at the National Research Council of Canada. He is a member of the Acoustical Society of America, and a fellow and past president of the Audio Engineering Society.

Todd Welti holds a Master's degree in acoustics from Aalborg University and has over 24 years of research experience at Harman, earning more than 15 patents. A former acoustical consultant, he has contributed to the industry as an author, CEDIA SME, AES committee member and educator. He "retired" in 2025 and currently consults on audio projects that interest him.