GAIN11

The Art & Science of Audio & Video

Bill Whitlock; President of Jensen Transformers

Bill Whitlock

Bill Whitlock, President of Jensen Transformers, Inc. since October, 1989. His responsibilities include leadership and management of Jensen. He oversees product development, engineering, and manufacturing. He writes technical articles for trade magazines and presents seminars on interfacing issues at industry trade shows.

For several years Whitlock worked closely with Deane Jensen, the original founder, providing consulting services to clients. He has an extensive background in high performance and wideband analog circuit designs. His experience includes data conversion, analog and digital magnetic recording, video signal processing, telemetry PWM and PCM techniques, computer peripheral interfaces, and test equipment design. Continue reading

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July 19, 2008 Posted by | Pioneers in Audio | , , , , , | Leave a comment

David Hafler; (Acrosound, Dynaco & Hafler)

Hafler had an enormous influence on several generations of audiophiles and music lovers. A graduate in mathematics from the University of Pennsylvania, Hafler served as a communications specialist in the Coast Guard during the Second World War. In 1950, he founded Acrosound, a transformer manufacturer. In 1954, he founded Dynaco, a name that became synonymous with good sound and good value. Hafler’s entire career was built on the concept of providing great performance at an affordable price. Continue reading

July 14, 2008 Posted by | Pioneers in Audio | , , , , , , | Leave a comment

Bruce Swedien; the man, the engineer, the legend.

Four days ago I attended the Sweetwater first annual Gear Fest ’08. I was lucky enough to be accompanied by my wife who I convinced to come through a rather impressive sales tactic otherwise known as begging. We arrived about forty-five minutes prior to the doors opening because I was determined to see the first speaker of the day, Bruce Swedien. To say that Gear Fest was a great event would be an understatement and I cover that in greater detail in another story for those that are interested in learning more. But me, I was not going to miss the opportunity to see Bruce Swedien and I knew seats would fill up fast. Continue reading

June 4, 2008 Posted by | A/V News, Pioneers in Audio | , , , , , , , , , , | Leave a comment

Peter D’Antonio

Peter D’Antonio (Founder of RPG Diffusor Systems)

Peter D’Antonio was born in Brooklyn, New York, in 1941. He received his B.S. degree from St. John’s University in 1963 and his Ph.D. from the Polytechnic Institute of Brooklyn, in 1967. Dr. D’Antonio has specialized in a wide variety of scientific disciplines including spectroscopy, x-ray and electron diffraction, electron microscopy, software development, and architectural acoustics. In 1996, Dr. D’Antonio retired after 29 years of research in diffraction physics at the Naval Research Lab, Washington, DC. During his scientific career, Dr. D’Antonio published widely and Continue reading

March 8, 2008 Posted by | Pioneers in Audio | , , , , , , , , , , , , | 2 Comments

Harvey Fletcher & Wilden Munson

HARVEY FLETCHER & WILDEN MUNSON, BELL LABS
FLETCHER-MUNSON LOUDNESS CURVES (1933)

Nearly 75 years ago, Harvey C. Fletcher and Wilden A. Munson—two Bell Labs engineers studying various aspects of subjective loudness—changed the way in which the world understands the hearing process. Their research asked a large number of subjects to compare the relative volume of two tones to a standard 1kHz tone at a set level. Averaging the results collected from the group, Fletcher and Munson defined of human hearing awareness at various frequencies.

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March 8, 2008 Posted by | Pioneers in Audio | , , , , , , | 1 Comment

Richard Heyser

RICHARD HEYSER
TIME DELAY SPECTROMETRY (1967)

Sometimes, even the greatest ideas take a while to come to fruition. In 1967, Richard C. Heyser, a research engineer at the Jet Propulsion Laboratory of the California Institute of Technology published a landmark paper in the AES Journal. Titled “Acoustical Measurements by Time Delay Spectrometry,” the article described a technique whereby loudspeakers and other electro-acoustical systems could be measured in a reverberant, real-world spaces—without requiring an anechoic chamber. Others saw additional applications for TDS, such as measuring room acoustics. Unfortunately, the horsepower Continue reading

March 8, 2008 Posted by | Pioneers in Audio | , , , , , , , , , , , , , | 1 Comment

Manfred R. Schroeder

Manfred Schroeder studied mathematics and physics at the University of Göttingen in Germany. In his thesis he investigated the distribution of resonances in concert halls using microwave cavities as models. The chaotic distribution he found is now recognized as characteristic for complex (non-integrable) dynamical systems.

In 1954 Schroeder joined the research department of AT&T Bell Laboratories in Murray Hill, New Jersey. From 1958 to 1969 he directed research at Bell on speech compression, synthesis, and recognition. Since 1969 he has also served as a Professor of Physics at Continue reading

March 8, 2008 Posted by | Pioneers in Audio | , , , , , , , , , , , | 2 Comments

Paul W. Klipsch

Courtesy of: Klipsch Audio Technologies

Paul W. Klipsch (PWK) is one of America’s most celebrated audio pioneers because he revolutionized the way the world listens to recorded music. Unsatisfied with the sound quality of phonographs and early speaker systems, Mr. Klipsch used scientific principles to develop a corner horn speaker that sounded more lifelike than its predecessors.

The Klipschorn®, which today is still manufactured and sold worldwide, proved that it was possible to reproduce the sound of a live orchestra inside a home. The resulting Continue reading

March 5, 2008 Posted by | Pioneers in Audio | , , , , , , , , , , , , , , | 2 Comments

Mick Hughes

“‘Big” Mick Hughes is the live audio engineer for Metallica, a position he has held since 1984. He is also currently sitting in the FOH seat for Led Zepplin!

He was born in 1960 and grew up in Birmingham, Warwickshire, England. While an apprentice at British Steel, he studied electronics at a local technical college and also gained experience on the thriving Midlands music scene. In the early 1980s, he engineered for bands including UB40, Dennis Brown, Yellow Man, and Jungle Man before becoming the touring sound engineer for The Armoury Show, who featured ex-The Skids singer Richard Jobson (television presenter) and ex Siouxsie & The Banshees guitarist John McGeogh. Continue reading

March 3, 2008 Posted by | Pioneers in Audio | , , , , , , , | Leave a comment

Don Keele

D. B. (Don) Keele, Jr.’s Summary

Bio as of Feb. 2008

Don Keele has worked for several companies in the area of loudspeaker R&D and measurement technology including Electro-Voice, Klipsch, JBL, Crown, and Harman. He holds three patents on “constant-directivity” loudspeaker horns, has four patents pending, and is a fellow of AES and a member of ASA. He wrote for Audio Magazine as a Senior Editor performing loudspeaker reviews. More recently, he worked for Harman/Becker Automotive Systems in the advanced technology development group and was a member of the Harman corporate acoustics engineering group working under Floyd Toole. Currently he is back at Harman/Becker working in the simulation and virtual acoustics group. Continue reading

March 3, 2008 Posted by | Pioneers in Audio | , , , , , , , , , , , , , , , | Leave a comment