The name “Jensen” is likely familiar to many in the pro audio industry as a hallmark of technical excellence, particularly with respect to transformers. And that will live on, especially in light of Jensen Transformers recently becoming a member of the growing group of companies in the Radial Engineering stable. But the story of how that name came to prominence is assuredly not well known, and it’s a fascinating account. Born in 1942, Deane Jensen grew up in Princeton, NJ. His Norwegian father, Dr. Arthur S. Jensen, was a physicist who earned his Ph.D. at the University of Pennsylvania,...Read More
Author: Keith Clark
Posted by Keith Clark | May 31, 2015 | Acoustics, Audio Technology, Development Of Audio Technology, Early History, History Of Professional Audio, People, Systems Analysis Software, Systems Design Software
by Frederick J. Ampel and Ted Uzzle For four centuries, natural philosophers and scientists have sought to quantify and derive qualitative standards for sound. Today’s technology enables investigations into the finest detail and structure of sound and audio signals. In order to understand today’s sophisticated computerized measurement systems and place their capabilities in perspective, it is useful to examine, from historical and scientific perspectives, the technological developments and systems that gave birth to the science of audio measurement. At The Beginning For centuries it was thought that sound was so ephemeral that any attempt to capture it — to...Read More
Editor’s Note: This copy is presented unedited, as written by Mr. Kahn, who is pictured above in the early 1950s. You’ll note that he’s a very good writer, with a clean, direct style. And, during the 1980s, E-V was shortened to EV. Lou Burroughs and I formed a partnership on September 1, 1927 to service radio receivers. Both of us were in our early twenties and had been radio experimenters for a number of years. The invested capital was $30.00 and a second-hand car. The firm prospered and within a year was the largest radio service shop in South...Read More
Posted by Keith Clark | Jan 31, 2015 | Audio Technology, Development Of Audio Technology, Hardware, History and Business of Audio, History Of Professional Audio, Installed Sound, Live Sound, Loudspeakers, Manufacturers, Microphones, People, Recorded Sound, Signal Processing and DSP
By Keith Clark Editor’s Note: This interview took place in July 2004. Jim Long has been a pro audio industry fixture for four decades (and counting), all of it with Electro-Voice (EV), where he recently marked his 40th anniversary. Jim’s long been known for a unique ability to explain audio techniques and concepts in simple, logical and just plain understandable ways. Don’t believe me? Next time you’re at an NSCA or InfoComm show, drop by the EV booth and take in one his presentations. I guarantee you’ll leave with a better understanding of something you thought you already knew,...Read More
From the archives of the late, great Recording Engineer/Producer (RE/P) magazine, enjoy this in-depth discussion with legendary producer George Martin at A.I.R. Studio London, conducted by William Wolf. This article dates back to the January/February 1971 issue. William Wolf: What do the letters “A. I. R.” stand for? George Martin: Associated Independent Recordings. WW: Has A.I.R. done any independent production locating the talent, etc. as yet? GM: Yes, but not much. We left our respective companies just over five years ago — three of us left EMI and one left Decca — and we had to do a deal...Read More
- Comments on the importance of the early-to-reverberant sound-energy ratio, “Clarity,” in speech and music acoustics, related to use of sound-reflecting panels with attention to data in Dr. Leo L. Beranek’s three concert-hall books.
- The Early-To-Reverberant Sound-Energy Ratio In Concert Hall Acoustics
- An Autobiographical Assessment of the Importance of the Early-to-Reverberant Sound-Energy Ratio, “Clarity,” in Speech Acoustics.
- History Repeats Itself: Boston’s Hatch Shell, New York City’s Holy Apostles Church, Albert Einstein, Joseph Albo, and Variable Time