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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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Inherent characteristics of USound MEMS speakers

July 15, 2021

Most components in consumer electronics are silicon-based. The last component that is still manufactured traditionally is the loudspeaker — until now. USound is leading the revolution of the global speaker market, being the first company to introduce MEMS loudspeakers to the mass market. The thin form factor and wide bandwidth of USound MEMS speakers enable…

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Helike

Rapid prototyping with MEMS speakers

April 8, 2021

To speed up the process of bringing your concept of a MEMS speakers-based audio system to reality, we designed two development platforms: Amalthea UA-R3010 and Helike UA-E3010. This article will walk you through the essentials of rapid prototyping with MEMS speakers and provide an overview of the expansion kits available. If your goal is to…

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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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USound MEMS speaker integration with pogo pins

Mechanical and electrical integration of USound MEMS speakers

March 18, 2021

One of the significant advantages of MEMS speakers is the possibility to be easily integrated into a wide variety of products. Due to the very small form factor, MEMS speakers can be used in technologies requiring more minimal designs, such as TWS, audio glasses and ultrasound applications. This article will go through some essential aspects…

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USound headphones

USound’s MEMS speakers extreme bandwidth technology

March 17, 2021

In this article, I want to focus on one particular feature that we haven’t discussed: our extreme bandwidth technology (XBW).  We use our XBW (extreme bandwidth) technology to increase the range of sounds that the loudspeaker can reproduce. Our Ganymede MEMS speakers can play higher frequencies than conventional loudspeakers and produces higher SPL at ultra-high…

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Advantages of MEMS Speakers in True Wireless Stereo (TWS)

March 11, 2021

MEMS speakers provide unique features and compelling advantages compared to electrodynamic and balanced armature speakers. The application-specific benefits of MEMS speakers must be separated into two main kinds of applications: Free field and occluded ear applications. In this article, we will focus on the latter.  When we talk about occluded ear applications, we refer to…

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How to measure Ganymede MEMS microspeakers

April 30, 2019

USound specifies and measures Ganymede MEMS speakers, Achelous and Adap, in both acoustic domains: in the baffle and the coupler (artificial ear). For both setups, proprietary measurement adapters are used to fit the standardised setup. In Baffle To measure in a baffle, the measurement adapter places the MEMS speaker with appropriate sealing inside the IEC baffle. The…

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MEMS speaker

How do USound MEMS speakers work?

April 4, 2019

USound’s technology is based on piezoelectricity. Crystals with these properties are for example aluminium nitride (AlN) or lead zirconate titanate (PZT). These materials expand or shrink in an electric field. In a practical configuration, such an electric field is generated between electrodes, covering a piezoelectric layer. This stack is put on top of a substrate…

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