xxiv Contributors
(1991, Sams). He has written over 2,500 articles for audio magazines and is contributing editor, columnist, and
blogger for Sound & Vision magazine.
Mr. Pohlmann chaired the Audio Engineering Society’s International Conference on Digital Audio in Toronto in
1989 and co-chaired the Society’s International Conference on Internet Audio in Seattle in 1997. He was presented
two AES Board of Governor’s Awards (1989 and 1998) and an AES Fellowship Award (1990) by the Audio Engi-
neering Society for his work as an educator and author in the field of audio engineering. In 1991 he was elected to
serve on the AES Board of Governors and in 1993 to serve as the AES Vice President of the Eastern U.S. and Canada
Region. In 1992 he was awarded the Philip Frost Award for Excellence in Teaching and Scholarship. In 2000 he was
elected as a nonboard member of the National Public Radio Distribution/Interconnection Committee. In 2000 he was
elected as a member of the Board of Directors of the New World Symphony.
Ray A. Rayburn
Ray A. Rayburn has an ASET from New York Institute of Technology and has
worked in the fields of audio, electroacoustics and telecommunications for over 38
years. He has taught audio at Eastman School of Music, Institute of Audio
Research, and InfoComm. He designed recording facilities for Broadway Video,
Eurosound, Photo-Magnetic Sound, db Studios, and Saturday Night Live. His
recording credits range from the Philadelphia Orchestra to Frank Zappa. Equipment
he has designed includes film dubbers, tape duplicators, specialty telecommunica-
tion equipment for the stock brokerage industry, and a polymer analyzer. He has
been a consultant on sound systems for the U.S. Senate, U.S. House, Wyoming
Senate and House, Georgia Dome, Texas House of Representatives, and University
of Hawaii Special Events Arena, among many others.
Currently, Ray is a Senior Consultant with K2 Audio of Boulder, Colorado. He is
a member of the Audio Engineering Society (AES), the Acoustical Society of
America, the National Systems Contractor’s Association, and InfoComm. He is
Chairman of the AES Standards Subcommittee on Interconnections and the working group on Audio Connectors. He
is a member and former Chairman of the AES Technical Committee on Signal Processing. He was a member of the
American National Standards Institute (ANSI) Accredited Standards Committee (ASC) S4 on Audio Engineering. He
is a member of the AES Standards working group on Microphone Measurement and Characteristics and of several
other Standards working groups. He devotes much of his spare time to educating churches worldwide on how to
improve their sound and acoustics through Curt Taipale’s Church Sound Check email discussion group.
Ray has a personal web site at http://www.SoundFirst.com.
Dr. Craig Richardson
Dr. Craig Richardson is a vice president and general manager of Polycom’s
Installed Voice Business. In this role, Richardson leads the development of
installed voice products and recently introduced the Sound Structure audio confer-
encing products—the first installed conferencing products that provide both mono
and stereo echo cancellation capabilities for an immersive conferencing experience.
Prior to joining Polycom, Richardson was president and CEO of ASPI Digital
and focused the company on creating the EchoFree™ teleconferencing products for
the audio/video integrator marketplace. ASPI’s products allowed users to experi-
ence full-duplex communication in situations never before thought possible, such as
distance learning, telemedicine and courtroom applications. In 2001, ASPI Digital
was acquired by Polycom Inc., the leader in unified collaborative communication.
Richardson led algorithm development at ASPI Digital as the director of Algo-
rithm Development working on an advanced low-bit-rate video coder, the MELP
military standard voice coder, digital filter design products, computer telephony products, multimedia algorithms for
speech, audio, and image processing applications for TMS320 family of digital signal processors. He has written