AES Los Angeles 2014
Historical Event H4

Saturday, October 11, 12:15 pm — 1:15 pm (Room 402 AB)


H4 - History of Audio Measurement Technology

John Murray, Optimum System Solutions - Woodland Park, CO, USA

Starting with early CRT real-time analyzers and strip-chart recorders, moving through LED RTAs to time-gated direct sound and windowing methodologies, to the full dual FFT era, including both dedicated boxes as well as software cards and programs, this presentation will track the historical development of audio measurement systems for sound reinforcement. Systems to be mentioned in the timeline will include HP, Altec, Amber, Arta, Audio Control, Audio Precision (Tektronix), Barclay Badap, B&K, Crown BDP-2 & TEF, General Radio, Goldline, Ivie, Meyer SIM, Neptune (NEI), SIA SMAART, Spectra Foo, UREI Sonipulse, UREI 200/2000 w/HP 7010B, and White Instruments.

Perspective on the practical application and technical progression of these types of measurement systems will be shared. Insight will be presented as to how the advancement of the technology fostered the expansion of knowledge for both the practitioners of system design and tuning, and for the developers of new loudspeaker/processing products. The presenter, John Murray, has made a life-long study of sound-system equalization and the tools used for it. Having experience in all sides of the sound reinforcement industry, his career has been greatly influenced by these measurement systems.

Return to Historical Events

EXHIBITION HOURS October 10th   10am – 6pm October 11th   10am – 6pm October 12th   10am – 4pm
REGISTRATION DESK October 8th   3pm – 7pm October 9th   8am – 6pm October 10th   8am – 6pm October 11th   8am – 6pm October 12th   8am – 4pm
TECHNICAL PROGRAM October 9th   9am – 7pm October 10th   9am – 7pm October 11th   9am – 7pm October 12th   9am – 6pm
AES - Audio Engineering Society