• reinventing sound

    A new evolution of the microphone using MEMS technology to achieve an unprecedented signal-to-noise ratio.

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our mission


Vesper was founded to commercialize a revolutionary approach to MEMS microphones developed by co-founders Bobby Littrell and Karl Grosh at the University of Michigan. This superior microphone design aims to bring studio quality acoustics into handheld devices. 


 about our vision






our technology


Vesper’s novel piezoelectric transducer design achieves unparalleled acoustic performance. Because piezoelectric structures only require a single active membrane layer, they are not affected by squeeze film damping, the dominant noise source in capacitive microphones. Our structures deliver higher SNR, better matching and a rugged waterproof ultra-small form factor.

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who we are


Our founders, Bobby Littrell and Karl Grosh, are the recognized thought leaders in piezoelectric microphone design. They have partnered with experienced industry executives Matt Crowley, Craig Core and James Jeong to commercialize this disruptive design in the most demanding and highest volume market segments.

meet our team





MEMS Mics Taking Over

Tasks once performed by specialized chips EE Times December 2, 2014 Colin Johnson   Article found here This article is […]


Top 8 Recent MEMS Innovations

Planet Analog November 24, 2014 Article found here MEMS improves microphones CEO Matt Crowley founded and built piezo-MEMS pioneer Sand […]

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Matt Crowley Speaks at MEMS Executive Congress

Matt Crowley of Vesper recently spoke at the MEMS Executive Congress, US 2014. YouTube video found here Published on Nov […]

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for press

Vesper is funded by leading venture fund Atlas Venture and strategic investors in the MEMS microphone industry. For all press inquiries please contact Matt Crowley.

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