In the superheated world of AI and Neural Nets (NN), many of us are familiar with object recognition in images: cars, pedestrians, cats and dogs and thousands of other applications. But there’s another class of applications, also growing rapidly, around audio AI. Early generations for command recognition in infotainment systems (eg navigation control) and smartphones (through eg Siri) were arguably more entertaining than compelling. In my view, what turbo-charged the audio AI market was Alexa. Now you can find products and active development in smartphones and personal assistants, watches, voice-activated TVs, appliances, headsets, hearables and head-mounted displays for VR/AR/MR. A FutureSource survey claims that growth in the audio market is now almost entirely driven by smart audio with a 15% CAGR from 2015 to 2018, accelerating to 30%+ from 2019 to 2023 (Yole Development).