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All-silicon, solid-state fidelity micro speakers now available
x
MEMS Labs, specialist in solid- state fidelity, has announced general availability of three solutions for immediate
integration into true wireless (TWS) earphones, in-ear-monitors (IEMs), digital hearing aids, and other emerging personal audio electronics, including smart glasses and sleep buds.
xMEMS Labs’ patented silicon-based speaker technology is slated to replace century-old coil speakers, allowing for high- volume, reliable mass production of solid-state speakers using semiconductor fabrication methods and resulting in more precise, higher fidelity, high-resolution audio. Mike Housholder, VP of marketing and business development of xMEMS, said: “Unlike conventional coil speakers, our speakers are monolithic, with silicon membranes offering far better material stiffness and exponentially faster impulse response than conventional speakers, resulting in the superior sound performance of xMEMS solid-state fidelity technologies.”
The xMEMS silicon membrane architecture has shown to be 95 times stiffer, offering improved clarity and eliminating the muddy midrange and treble response created by traditional speaker membrane materials.
The silicon architecture is also said to deliver 150 times faster impulse response
than traditional designs, offering the most pulse-true and accurate sound reproduction, which is not possible with the slow attack and decay of coil architectures. With the announcement, xMEMS Labs has begun shipping three solid-state fidelity solutions: ● Cowell, the small solid-state micro speaker, delivers high-frequency response and clarity, plus a wider sound stage, for TWS earphones and hearing aids. ● Montara Plus, the high output MEMS micro speaker is capable of sound pressure levels up to 120 dB @ 200 Hz making it a suitable full-bandwidth transducer for audiophile-level, high-resolution in-ear monitors. ● Skyline DynamicVent, the piezoMEMS, DSP-controllable vent
blends the benefits of open- and closed- fit earbuds and hearing aids. Active ambient control (AAC) offers enhanced adaptive ANC and transparency mode implementations with reduced occlusion effects, eliminating the uncomfortable amplification of one’s own voice or footsteps when their ears are covered. Peter Cooney, founder of SAR Insight, said: “Consumer demand for high- resolution, spatial, lossless streaming audio represents a generational shift in audio content that requires a similar evolution in sound reproduction. Solid- state fidelity is able to create a more accurate reproduction of the source audio and a vastly superior listening experience.” This is accomplished using thin-film piezo technology as the speaker actuator,
replacing the coil and magnet, which when combined with silicon as the speaker diaphragm instead of plastic or paper creates the world’s first solid-state speaker. Unlike traditional coil speakers used in electronics, xMEMS micro speakers utilize standard semiconductor processes and packaging so they can be produced rapidly, uniformly, and cost-effectively at scale. The result is a high-performing speaker that is about 1/10th the weight and 40 per cent the size of a similar coil speaker. And with no moving parts, an xMEMS solid-state micro speaker is more reliable and durable than prior technologies, even meeting IP58 standards of protection from dust and sweat.
https://xmems.com
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www.techsil.co.uk Components in Electronics April 2023 9
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