xMEMS Announces Montara Pro, the World’s First MEMS Micro Speaker with Integrated DynamicVent for Smart TWS Headphones and Hearing Aids

DynamicVent opens or closes through the system’s DSP sensor fusion input and offers the benefits of both open and closed fit ear cups

Monolithic design implements True MEMS and DynamicVent speaker in a single silicon chip

SANTA CLARA, California & LAS VEGAS, January 03, 2022– (BUSINESS WIRE) – xMEMS Labs today introduced Montara Pro, the world’s first monolithic MEMS micro-speaker with built-in DynamicVent enabling smart TWS headphones and hearing aids that create the best user experiences of both worlds by combining the advantages of closed (occluded) fit and open headphones. xMEMS is offering the first Montara Pro demos this week at the Consumer Electronics Show in Las Vegas, at the Venetian Suite 29-325.

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xMEMS Montara Pro with DynamicVent (Graphic: Business Wire)

Montara Pro’s patented DynamicVent technology can be opened or closed intelligently by the DSP headphone system based on ambient noise levels detected by microphones or listener activity from motion sensors. With the vent closed, Montara Pro creates a listening environment with the best passive isolation for music and media consumption or for better focus in the presence of background noise. With the vent open, Montara Pro allows for better spatial perception, increased listening comfort and reduced occlusion effects, such as the perception of the user’s own voice as being too loud, “boomy” or ” dig “. Equally important, DynamicVent eliminates the need for traditional static vents that create persistent low frequency attenuation that impacts music and media quality and also impacts consumers with low frequency hearing loss. . DynamicVent can also eliminate the need for oversized speakers in headphones which are commonly used to compensate for low frequency loss caused by persistent static vents.

“As part of our mission to ‘reinvent sound’, we are expanding the capabilities of what µ speakers can do in small form factor systems,” said Dr Chiung Lo, xMEMS Co-Founder and Vice -President of the design. “Achieving the highest quality sound reproduction remains a paramount task, but now, with DynamicVent technology, we enable system designers to balance the benefits of open and closed headphone architectures that pave the way for more solutions. intelligent and better performing for consumers in a variety of listening environments. “

“Ventilation is of critical importance for TWS headsets and hearing aids. In the past, compromises had to be made when selecting an open / vented or closed / occluded fit implementation and none. of the two choices does offer the best listening performance in all environments and life situations, “said Dr. Abram Bailey, AuD. and CEO of Hearing Tracker, Inc.” The emergence of active ventilation technologies , like xMEMS’s DynamicVent, is a boon to consumers and hearing care professionals alike, eliminating tradeoffs and enabling consumer audio products and listening performance that can adapt to any environment. “

Montara Pro’s µ speaker offers a flat frequency response of up to 115 dB SPL up to 1 kHz and provides up to 18 dB of gain above 1 kHz for enhanced vocal and instrument clarity . Montara Pro is a single-chip monolithic architecture implementing both speaker and DynamicVent in silicon, achieving unparalleled part-to-part frequency response consistency and reduced speaker matching. or calibration time during manufacture. This innovative transduction mechanism also produced the fastest and most accurate speakers in the world, eliminating spring and suspension recovery from coil speakers, improving audio quality and sound field reproduction. .

Montara Pro’s DynamicVent implements a differential design that eliminates open / close noise. Large ventilation opening creates relief equivalent to 1.5mm2 hole and offers 20dB of attenuation from 500Hz to 20Hz. Unlike other non-MEMS approaches to active ventilation, DynamicVent achieves an IP58 rating providing better resistance to particles and moisture penetration, thus improving the longevity of the end product.


Montara Pro samples and evaluation kits are available today for select customers, with mass production slated for Q3 2022. Montara Pro is available in a side-fire LGA package (5.15 x 1.15 x 10.8 mm). Montara Pro is combined with the xMEMS Aptos Class-H audio amplifier (1.92 x 1.92 x 0.6 mm WLCSP).

About xMEMS Labs, Inc.

Founded in January 2018, xMEMS Labs is reinventing sound with the world’s first monolithic True MEMS speaker for TWS and other personal audio devices. xMEMS has 45 granted patents and over 100 patents pending for its technology. The company is dedicated to designing advanced solutions and applications with MEMS technology for a range of consumer electronics devices. For more information, visit https://xmems.com.

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xMEMS Labs, Inc.

Mike housholder
Vice President Marketing and Business Development
[email protected]

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