Everything That's Audio in audioXpress December 2023

audioXpress December 2023 includes a market overview of multiroom audio, Brent Butterworth writes about new ways to measure ANC earbuds, and Stuart Yaniger measured the new Axign and GaN Systems Class-D audio amplifier board. Richard Honeycutt writes about tubes, BJTs, JFETs, MOSFETs, and ICs, and Dimitri Danyuk, discusses JFETs in audio circuits. Douglas Self explains how to optimize variable-frequency tone controls, and Jan Didden shares his eDD direct-drive amplifier project.

When the Bluetooth Special Interest Group (SIG), the trade association that oversees Bluetooth technology, announced the upcoming release of LE Audio at CES 2020, the new specification promised two major benefits: the new LC3 codec to provide higher audio quality with the same battery life, and Broadcast Audio, enabling personal and location-based Audio Sharing. Now the Bluetooth SIG announced a new consumer brand for what was previously known as Audio Sharing, now as Auracast broadcast audio.

Canadian company Eleven Engineering, specializing in semiconductor products for wireless audio for home theater, multi-room, portable, professional, 12 Volt (car, truck, motorcycle, power sports, marine) and gaming applications, and the developer of the renowned SKAA wireless audio solutions, announced a partnership with Infineon Technologies to promote the company's MERUS multilevel amplifier range.