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In this issue

HEARABLES AND TRUE WIRELESS STEREO 8 Maximize Your Hearing By J. Martins This Market Update illustrates some key market trends and highlights a few important ongoing technology efforts in the headphone product category. 26 Exploring Qobuz High-Resolution Streaming By Luke McCready European high-resolution music streaming company Qobuz expands to the US in 2019 to challenge Tidal for the audiophile streaming market. Here, we put Qobuz’s claims against Tidal and other music streaming companies to the test. 36 Enabling Higher Quality Audio Capture for Smartphones By Jyri Huopaniemi and Kai Havukainen The rise of user-generated content is placing more and more demands on the capture capabilities of today’s smartphones. Discover how Nokia’s OZO Audio is improving their audio recording capabilities. 40 Testing Smart Devices By Steve Temme This article addresses the challenges and solutions for testing the wider class of “smart” connected, voice-activated and sensor-equipped devices, proposing solutions to implement basic acoustic tests and real-world tests of greater complexity. 48 Industry Focus on Voice Applications By J. Martins Voice capture and voice recognition applications, driven by smart home devices, show large growth opportunities. The article details some alternatives in speech recognition engines and related technologies for developers. 62 The Geek Columns By Ken Bird Learn how to build these unique Grecian-style columns, which Ken Bird has fondly named the “Geek Columns,” and generate a full-range omni-directional sound. Because they are easy to build, they can be ready to enjoy in your outdoor space once the warmer weather arrives. 58 Wave Behavior of Sound in Rooms By Richard Honeycutt

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