Practical Testing of Voice Controlled Devices

Author: Steve Temme.  Reprinted from the Jan 2020 issue of AudioXpress.

This article discusses tools and techniques that are available to accurately measure the audio performance of voice-controlled and connected devices under the many various real-world conditions they may be used. It covers basic acoustic measurements such as frequency and distortion response, which have always been carried out on conventional wired systems, and the more complex real-world tests that apply specifically to voice-activated devices, along withthe techniques and standards that may be used.
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Smarter Measurements for Smart Speakers

Author: Daniel Knighten (Listen, Inc) and Glenn Hess (Indy Acoustic Research).  Reprinted from the March 2018 issue of Audio Xpress.

In this article, we describe techniques to characterize the frequency response, output level, and distortion of the device under test to enable direct comparisons between Internet of Things (IoT) smart speakers and conventional speakers.

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