usb-audio
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XMOS
XMOS is a fabless semiconductor company based in Bristol, UK, that designs the XCORE family of multicore, deterministic processors for embedded voice, audio, AI and control at the edge. Founded in 2005 by a team rooted in the University of Bristol and Inmos transputer heritage, XMOS built its name on far-field voice processing (VocalFusion, the first far-field solution qualified for Amazon Alexa) and now positions XCORE as a 'Generative System-on-Chip' (GenSoC) - silicon whose behaviour can be described in natural language while guaranteeing real-time, deterministic performance.
ESS Technology, Inc.
ESS Technology is a privately held fabless semiconductor company in San Jose, California that designs high-performance analog and audio chips. It is best known for its SABRE line of digital-to-analog converters (DACs) and analog-to-digital converters (ADCs), built on the patented HyperStream modulation architecture, which are widely regarded among audiophiles as some of the best-sounding audio silicon on the market. ESS parts power everything from LG flagship smartphones and Sennheiser's flagship headphones to home-theater receivers, professional studio gear, soundbars, and automotive audio systems.