Essential Updates on Headphones, TWS, Hearables, Voice and More in audioXpress April 2020

The April 2020 edition of audioXpress is now available and features two essential Market Updates, one focusing on the industry transition to active headphone and earphone designs, and another on how to leverage the latest voice capture and processing technologies. The issue also explains how to evaluate listening effort, and Stuart Yaniger puts the Linear Audio Autoranger Mk II Interface to the test, while Ed Simon writes about AC Power Rectification. Another issue to read and use as reference.

The March 2020 edition of Voice Coil is now available online and in print. In this edition, Vance Dickason gets hands-on with the Audio Precision APx500 Flex Audio Analyzer, Mike Klasco writes about Loudspeaker Enclosure Materials, and James Croft explores a new patent of a novel orientation of a cardioid speaker design. And in Test Bench, Dickason characterizes a home audio transducer from Eastech's Punktkilde line, the cosmetically pleasing AUGWL0016-JN02 6.5” midbass driver.

audioXpress March 2020 focuses on Audio Test & Measurement. In this edition, learn how to find the right Test & Measurement solution, learn more about how to optimize audio production tests, and read the review of the new Dayton Audio DATS V3 Test System. Luke McCready also reviews the fantastic Audeze Mobius planar magnetic, wireless headphones. There's plenty more to read and learn about in our regular columns Sound Control and Audio Scope, plus a new article from Ed Simon on Powering Audio Circuits.

Voice Coil February 2020 is now available for download. This edition features an industry update on Speaker Cones, exploring the fabrication, materials, and performance aspects of this critical component in driver design. This is complemented with a comprehensive directory of loudspeaker cone, surround, spider, and other soft part suppliers. James Croft reviews a Self-Sealing Expandable Subwoofer design patent, while Vance Dickason characterizes the LaVoce WAN103.01 high-power 10” woofer, and a Radian 835PB ferrite 1.4” aluminum diaphragm compression driver in Test Bench.

The February 2020 edition of audioXpress features a Market Update on Microphones, addressing the latest technology and application trends in this expanding product segment, including an article explaining how Nureva created a groundbreaking approach to gain control that cuts conference call annoyance. And Richard Honeycutt explains how to choose and position Choir Microphones, while Michael Steffes discusses interfacing measurement mics to Delta-Sigma ADCs. Get the new edition now!

Want to know which of the topics and stories published online in 2019 were the most popular? We looked at the most-read articles of 2019 in audioXpress.com (which also includes selected articles from Voice Coil magazine), and we created this Top 10 list of news stories and online articles. Here are the results!

Voice Coil January 2020 is now available in print and digital. This first edition of 2020 includes two valuable directories of headphone and headphone parts vendors. In Acoustic Patents, James Croft reviews two different ported tweeter design patents awarded to the same inventor. And Vance Dickason welcomes two new companies - LaVoce from Italy and Oberton from Bulgaria - to Test Bench. LaVoce submitted the 1” DF10.172K compression driver, while Oberton sent the ND72CT/HB 1.4” Hybrid Dome compression driver.

audioXpress January 2020 is now available in print and download! To start 2020 in the best possible way, this edition includes a Market Update about Speakers and Transducers, followed by a report of the COMSOL Boston Conference where the latest Multiphysics 5.5 Release was unveiled, a great review of the Cambridge Audio Edge W amplifier, and an in-depth article in which Steve Temme discusses tools and techniques to accurately measure voice-controlled and connected devices. Plus many more great theory articles and practical knowledge shared by audioXpress experts.

Voice Coil December 2019 features an outstanding article on constant directivity horn design from Dario Cinanni, followed by a new Spotlight feature on MEMS loudspeakers by Mike Klasco (Menlo Scientific), and a new vendors directory. Next up, James Croft reviews a new loudspeaker enclosure patent recently awarded to Bang & Olufsen, and Vance Dickason offers two complete characterizations of new pro sound drivers from Dayton Audio and BMS.

audioXpress December 2019 dives into the latest wireless audio and DSP platforms and solutions in a dedicated Market Update, followed by a review of the latest Audio Precision APx555 B Series audio analyzer. David Logvin shares his experience with the xCORE VocalFusion development platform by XMOS, while Michael Steffes re-confirms a theory that cascaded amplifier + ADC harmonic distortion combine as voltage swings. Christopher Paul explores alternative approaches to the design of a linear current regulator for audio tube amplifiers, Menno van der Veen details an 18 W single-ended valve amplifier using Trans technology, and Richard Honeycutt investigates whether or not swapping out comparable tubes makes any audible difference in a guitar amplifier’s sound. Download your own copy now!