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Men wearing fauna audio glasses

Acoustic privacy in audio glasses: how to make sure another person doesn’t overhear the user’s phone calls

October 22, 2021

The aim of this article is to discuss the topic of acoustic privacy in audio applications, specifically in audio glasses. With earphones, this obviously becomes trivial: intra-aural earphones seal the loudspeaker into the ear canal by means of the silicon tip, which naturally offers high isolation. Intra-concha earphones do not have a sealed front volume,…

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How to measure USound MEMS loudspeakers

July 30, 2021

USound currently offers two MEMS loudspeakers that are part of the Ganymede series: Adap UT-P2019 and Achelous UT-P2018. Adap is optimized towards maximum acceleration, making it ideal for free-field applications, whereas Achelous is optimized towards maximum excursion, making it especially suitable for occluded-ear applications. Therefore, USound MEMS loudspeakers can be evaluated in both acoustic domains:…

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USound’s approach to smart speaker design

July 21, 2021

Our goal at USound has always been to empower engineers with an audio component that enables them to unleash their creativity and stand out with their product designs. The thin form factor and wide bandwidth of USound MEMS speakers enable the miniaturization of the audio module of consumer electronics, allowing more space for other components…

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USound MEMS speakers vs electrodynamic speakers

Why USound MEMS speakers outperform electrodynamic and balanced armature micro speakers

March 25, 2021

Most consumer electronics nowadays use traditional electrodynamic speakers. They consist of a magnet, a voice coil, a diaphragm and a support structure/enclosure. This working principle limits the minimum height that can be achieved with such a loudspeaker. The diaphragm’s suspension solely controls the mechanical behaviour, as electrodynamic microspeakers typically lack the centering spider of larger…

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