Hearables, Headphones Testing, Audio Electronics, and More in audioXpress April 2023

Want to understand what's ahead in the most revolutionary audio product category of the 21st century? Read the State of the Hearables Industry Market Update. And for product developers and manufacturers, there's also a Headphones Test and Measurement report. Burkhard Vogel discusses op-amp noise in simulated models, Bruce E. Gillingham offers a complete monoblock power amplifier project, and René Christensen writes about acoustic topology optimization. And so much more....

A strange week we had, with most of the technology world focused on another edition of GSMA's Mobile World Congress (MWC), with the usual gush of new iPhone-clone announcements and most of the key semiconductor giants dividing their announcements with embedded world 2018, taking place at the same time in Nuremberg, Germany. Still, neither was much affected by the clash. MWC is more and more consumer electronics, autonomous cars, cloud solutions, and software developers pitching their latest ideas on social-engineered apps.

On November 9, 2017, I attended the Futuresource Audio Collaborative 2017 conference, at the Ham Yard Hotel in London. With the topic "A Change is Gonna Come," the conference was a valuable and insightful event. To entice our readers to actually spend the hours listening to those interventions (and for those that don't have the time to do it), I will share some of the key highlights, adding some personal takes on the topics addressed.

German company Bragi anticipated the announcement of Apple’s headphone-jack free iPhone 7 with an announcement of its own. While some audio companies are targeting Lightning connectivity and the benefits of direct digital connection, Bragi decided to make the best use of its technology already developed for The Dash true wireless earbuds to create a new simpler model - The Headphone - focusing on compatibility with any Bluetooth device… including the iPhone.