All items tagged with Charlie Hughes (18)

Properly Equalized: Best Practices for Loudspeaker Equalization and Tuning

April 27, 2022 by Charlie Hughes

Properly Equalized: Best Practices for Loudspeaker Equalization and Tuning

Charlie Hughes knows about directivity control and how a loudspeaker system should sound good and measure accordingly. This article offers basic recommended guidelines that will not only help to develop good equalization and tuning practices, but also will go a long way in improving the overall sound quality, regardless of the application. This article was originally published in audioXpress, January 2022.

audioXpress January 2022 Looks Ahead at Speaker Technology Developments

December 13, 2021 by audioXpress Staff

audioXpress January 2022 Looks Ahead at Speaker Technology Developments

Great articles, practical projects, reviews, and audio technology previews start the year in full force! That's what our readers will find in audioXpress January 2022, starting with an update on new materials and engineering approaches for loudspeakers, and articles by Charlie Hughes, Scott Dorsey, Frans de Wit, Ken Bird and Mike Harkins. Brent Butterworth reviews the Olive Pro earbuds, while Raj Senguttuvan from Knowles discusses differentiation for True Wireless Stereo (TWS) design and development.

Biamp Hires Charlie Hughes as Principal Engineer for its Electroacoustics Division

May 12, 2021 by audioXpress Staff

Biamp Hires Charlie Hughes as Principal Engineer for its Electroacoustics Division

Biamp, the former manufacturer of professional audiovisual solutions from Beaverton, Oregon, now covering virtually every major market segment in pro audio and commercial installation, has appointed Charlie Hughes as Principal Engineer within the company's fast-growing Electroacoustics division. Charlie will have the opportunity to expand the company’s loudspeaker catalog that already encompasses products from Community and Apart.

Expanded Program and Registration Options for AES@NAMM Pro Sound Symposium: Live & Studio 2019 Revealed

November 30, 2018 by Audio Engineering_Society

Expanded Program and Registration Options for AES@NAMM Pro Sound Symposium: Live & Studio 2019 Revealed

AES@NAMM once again brings high-end, professional education for live sound, recording and audio for the performing arts to Anaheim. The Audio Engineering Society has opened registration for AES@NAMM Pro Sound Symposium: Live & Studio 2019. The AES returns to Anaheim, CA, for its four-day international symposium, January 24 – 27, in conjunction with The 2019 NAMM Show at the NAMM U Education Center on the 4th floor of the Anaheim Hilton.

Optimizing Loudspeaker Directivity Through the Crossover Region

February 1, 2018 by Charlie Hughes

Optimizing Loudspeaker Directivity Through the Crossover Region

Do you know what the crossover filters are doing to the response of the loudspeaker system? Some of you might have measured the frequency response of the loudspeaker system to determine what’s happening through the crossover region. However, most designers only look at the loudspeaker’s on-axis response. It’s equally important, or perhaps more important, to know what’s happening off-axis. Let’s see how loudspeaker modeling can be used to help with this. This article was originally published in Voice Coil, August 2017.

Measurements for Loudspeaker Modeling Files

November 18, 2017 by Charlie Hughes

Measurements for Loudspeaker Modeling Files

Loudspeaker modeling files are most often used with acoustical modeling programs such as EASE, Focus, CATT-Acoustic, and others to help determine how well the loudspeakers cover the audience areas and how much “spill” there is on the room’s surfaces. It is important to have accurate data about the characteristics of the loudspeakers that are used in the models. In this article, we will detail some of the requirements to help assure good measurement data for use with loudspeaker modeling. This article was originally published in Voice Coil, April 2017.

Key Industry Knowledge for Loudspeaker Professionals in Voice Coil August 2017

July 24, 2017 by audioXpress Staff

Key Industry Knowledge for Loudspeaker Professionals in Voice Coil August 2017

Voice Coil August 2017 is now available. Read an excellent tutorial from Charlie Hughes about optimizing loudspeaker directivity through the crossover region, and read James Croft’s review of a new bass-reflex speaker cabinet design. In Test Bench, we learn more about are Tymphany's new DFM-2535R00-08 compression driver and Volt Loudspeakers' new VM527 dome midrange. And don't miss the updated directory of OEM/ODM Voice Coil Manufacturers.

Learn More about Loudspeaker Innovation in Voice Coil April 2017

March 28, 2017 by audioXpress Staff

Learn More about Loudspeaker Innovation in Voice Coil April 2017

Who says nothing exciting is happening in the loudspeaker industry? As the April 2017 edition of Voice Coil demonstrates, evolution is making headway in our industry. Read about the new GrapheneQ material from ORA Sound, how things are evolving in Microspeaker Design, and discover the major players in this exciting market. Also, learn what you need to generate Measurements for Loudspeaker Modeling Files and on drivers from two high-end manufacturers, Accuton and ETON, in Test Bench.

Complete Loudspeaker Industry Focus: Voice Coil February 2017 Now Available!

January 26, 2017 by audioXpress Staff

Complete Loudspeaker Industry Focus: Voice Coil February 2017 Now Available!

Another monthly edition of Voice Coil is now available featuring the traditional directory of Loudspeaker Cone Industry Suppliers 2017. In this issue, Vance Dickason tests two drivers from SB Acoustics’ Satori Line, including the much anticipated TW29BN beryllium dome tweeter. Charlie Hughes writes about his independent measurement lab, Excelsior Audio. On Acoustic Patents, James Croft reviews a familiar parametric loudspeaker patent. Voice Coil pays tribute to Chris N. Strahm (1956-2016), founder and president of LinearX.

Target SPL and Required Amplifier Size

November 16, 2016 by Charlie Hughes

Target SPL and Required Amplifier Size

In a previous article (Loudspeaker Sensitivity: What’s a Watt Anyway? April 2010 Voice Coil), I examined the topic of loudspeaker sensitivity and how it may or may not relate to the overall sound pressure level (SPL) produced by a loudspeaker. The output capability of the amplifier driving the loudspeaker is of equal importance to achieving the target SPL from the direct field of a loudspeaker. This can also be related to the driving signal or the intended program material. This article was originally published in Voice Coil, May 2010.

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