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.

DTS, a wholly owned subsidiary of Xperi Corporation, announced that its DTS Virtual:X post-processing technology is now available in several popular Analog Devices DSP chips. The fully-certified DTS Virtual:X SDKs are ready for integration into AVRs and soundbars, with the first Analog Devices-enabled DTS Virtual:X firmware updates scheduled for Summer 2018. The DTS Virtual:X solution is now available on the following Analog Devices DSP products: ADSP-2148x, ADSP-2157x, ADSP-SC57x, ADSP-2158x.

Shortly after the publication of the new HDMI 2.1 specification by the HDMI Forum, Lattice Semiconductor announced the release of the SiI9437 and SiI9438, the first HDMI 2.1 Enhanced Audio Return Channel (eARC) audio receiver and transmitter devices. This allows manufacturers to start implementing solutions that benefit from the self-discovering, self-configuring and fully automatic HDMI Audio Link for flawless home theater experiences.