All items in category Magazine Articles
Fresh From the Bench: Earthworks M23R Measurement Microphone
by Stuart Yaniger

Fresh From the Bench: Earthworks M23R Measurement Microphone

In this review, Stuart Yaniger details his findings about the M23R Earthworks measurement microphone. The M23R is the latest omnidirectional model in Earthworks’ infinitely matched series of measurement microphones. It is designed to be an affordable reference solution, delivering an IEC 61672 Class 1 frequency response before applying any equalization. This article was originally published in audioXpress, November 2020.
Read more...
Communications: Enabling High-Quality Voice Conferencing
by Manfred Lutzky

Communications: Enabling High-Quality Voice Conferencing

audioXpress is proud to publish a contributed article by Manfred Lutzky, Head of Audio for Communications at Fraunhofer IIS, Audio and Media Technologies division and one of the members of the team responsible for the development of state-of-the-art speech and audio communication codecs such as EVS, AAC-ELD, and LC3/LC3plus. In this article, he provides a valuable perspective about the technologies and audio codecs that we depend upon to make audio and video conferencing calls. This article was originally published in audioXpress, October 2020.
Read more...
Fresh From the Bench: GeerFab Audio D.BOB Digital Breakout Box
by Gary Galo

Fresh From the Bench: GeerFab Audio D.BOB Digital Breakout Box

Gary Galo reviews GeerFab Audio’s D.BOB Digital Breakout Box, a valuable new solution for all the music enthusiasts who would like to listen to their Super-Audio CD (SACD) music collection by feeding the DSD datastream via HDMI from the player to an outboard digital-to-analog converter (DAC) in high-resolution audio. And GeerFab Audio created the first device that delivers! This article was originally published in audioXpress, October 2020.
Read more...
The Evolution of Audio DSPs
by Youval Nachum

The Evolution of Audio DSPs

To complement the extensive perspective of another Market Update feature article on DSP Products and Applications, published in the November 2020 edition, audioXpress was honored to have the valuable contribution from one of the main suppliers in the field. In this article, Youval Nachum, CEVA’s Senior Product Marketing Manager, writes about "The Evolution of Audio DSPs," discussing how DSP technology has evolved, its impact on the user experience, and what the future of DSP has in store for us.
Read more...
Fresh From the Bench: The Magnepan LRS, Back to the Future
by Oliver A.Masciarotte

Fresh From the Bench: The Magnepan LRS, Back to the Future

Forced to shelter at home, Oliver Masciarotte looked around his home base in the Twin Cities, and decided it was time to have a serious look at the Magnepan LRS (Little Ribbon Speaker) the company's latest affordable, full-range quasi-ribbon speaker. For this review, Masciarotte writes about what he heard, while Kent Peterson (Warkwyn) measures its performance in the lab. If you are curious to see how does a ribbon speaker measures on a Klippel Near-Field Scanning (NFS) system you definitely want to check out this article, originally published in audioXpress, September 2020.
Read more...
 FREE DOWNLOAD
R&D Stories: How Virtual Product Development Improves the Quality of Consumer and Pro Audio Products
by Alfred Svobodnik

R&D Stories: How Virtual Product Development Improves the Quality of Consumer and Pro Audio Products

This article addresses how modern methods of acoustical virtual product development make it possible to assess and optimize quality and performance problems throughout the entire product development process. Using a combination of modeling, simulation, and measurement tools, everything can be analyzed in-depth before building the physical product, the two authors explain. This article was originally published in audioXpress, September 2020.
Read more...
Fresh From the Bench: A Tale of Two Class-D Amplifiers Orchard Audio Starkrimson and Purifi Audio Eigentakt EVAL1
by Stuart Yaniger

Fresh From the Bench: A Tale of Two Class-D Amplifiers Orchard Audio Starkrimson and Purifi Audio Eigentakt EVAL1

Stuart Yaniger examines new amplifier solutions from two disrupting audio companies. Purifi Audio from Denmark, founded by Bruno Putzeys, Lars Risbo, and Peter Lyngdorf, together with a remarkable engineering team; and Orchard Audio, with a product developed from the creativity and entrepreneurship of Leonid (Leo) Ayzenshtat, in this case exploring the latest gallium nitride (GaN) semiconductor technology. This article was originally published in audioXpress, July 2020.
Read more...
Unravelling the Technical Solutions in Waterproofing of Audio Devices
by David Lindberg

Unravelling the Technical Solutions in Waterproofing of Audio Devices

This article offers an interesting perspective on the challenges and solutions that the electronics industry in general and the audio industry specifically needs to consider when requirements for waterproof, moisture-proof, splash proof, weather-resistant, and sweat-proof are increasingly demanded by consumers. "While the marketing points on the box might claim IPx7, IP68, or sweat proof, from a manufacturing perspective, there are gaps in the different processes to achieve these standards," Lindberg writes. This article was originally published in Voice Coil, July 2020.
Read more...
Acoustic Praxis: The Elephant in the Lab
by Jim DeGrandis

Acoustic Praxis: The Elephant in the Lab

In this very pertinent and opportune article, Jim DeGrandis discusses the important challenges of specifying acoustic materials. Specifically, his article discusses the need to update basic lab measurements and test data to improve the accuracy of the advanced design, modeling, and simulation tools that exist today. This article was originally published in audioXpress, August 2020.
Read more...
Fresh From the Bench: Audeze Mobius Headphones Reviewed
by Luke McCready

Fresh From the Bench: Audeze Mobius Headphones Reviewed

High-end planar magnetic headphone manufacturer Audeze broke out of the mold with the Mobius: a wireless Bluetooth headphone capable of LDAC high-resolution playback, virtualized surround sound with built-in head-tracking, and a number of surprises Audeze continues to invent. In his review, Luke McCready shares what he learned about the fantastic Audeze Mobius Headphones, a very sophisticated platform to which Audeze keeps adding new features. This article was originally published in audioXpress, March 2020.
Read more...