ProfileDr. Frederick J. Ampel has been involved in the professional A/V industry for more than 40 years, working as a systems designer, consultant. He was the founding editor of Sound & Video Contractor and for SCN, as well as an editorial development consultant for Residential Systems Magazine, Live Sound International, and ProSoundWeb. He holds a Ph.D. in Acoustics and a MS in Broadcasting and Electrical Engineering from Boston University and has been published by the Institute of Acoustics (UK), Acoustical Society of America, AES, NSCA, InfoComm and quoted in USA Today and The Wall Street Journal, and numerous industry publications. He volunteered with and taught for CEDIA, NSCA, InfoComm, and AES. In 1991, Fred founded Technology Visions Analytics, a consultancy and market research firm, which he still runs today. For the last decade, he has concentrated on Worship Sound system performance and speech intelligibility.