The world’s highest SNR MEMS microphone

sensiBel’s patented optical ultra-low noise MEMS (Micro-Electro-Mechanical System) microphone features >80dB Signal-to-Noise-Ratio (SNR), without compromising Acoustic Overload Point (AOP) and Total Harmonic Distortion (THD) - a quantum leap in performance compared to today's mainstream MEMS microphones

Voice user interface

Voice is rapidly becoming the primary user interface for man/machine interfaces. The sensiBel microphone enables a robust, high-quality far-field voice capture resulting in significantly reduced Word Error Rate (WER) for embedded and cloud based Automatic Speech Recognition (ASR)

Microphone arrays

A high SNR is the key parameter to enable small form-factor designs and to increase the range of the sound capture. The sensiBel microphone doubles the range compared to today’s mainstream microphones and enables microphone arrays with 50% reduction in size

High-quality audio capture

High-quality audio recordings require expensive professional grade equipment and typically larger microphones. The sensiBel microphone provides the same level of performance in a small MEMS package enabling professional grade audio capture to the mass market

The Optical MEMS Advantage

The improvement of the key microphone parameter (SNR) for MEMS microphones has reached a ceiling with today’s transducer technologies. Small improvements in performance can be achieved by e.g. including additional transducers elements in a MEMS package. This approach quickly adds complexity and cost, and can only go so far. A new transducer technology is required to make a significant leap in performance – optical MEMS!

sensiBel’s patented optical MEMS technology that makes the microphone so sensitive is based on a combination of two optical phenomena; interference and diffraction, both of which are due to the wave character of light. In simple terms, the microphone uses a tiny energy-efficient laser to measure extremely accurately the motion of a silicon-based membrane, thanks to the integrated photodetector readout system. This ultra-low self-noise readout principle gives the high SNR characteristic, yet in a small MEMS package with low power consumption.

Additional benefits of the optical MEMS transducer system are enhanced environmental robustness e.g. against dust, and significantly reduced likelihood for stiction (the membrane stuck to the backplate).

Team

sensiBel was founded based on extensive research at SINTEF
Sverre Dale Moen
Sverre Dale Moen
CEO
Matthieu Lacolle
Matthieu Lacolle
CTO
Jakob Vennerød
Jakob Vennerød
Head of Product Development
Hans Jørgen Bang
Hans Jørgen Bang
Chief Scientific Officer
Sigbjørn Kolberg
Sigbjørn Kolberg
Head of Hardware Development
Håkon Sagberg
Håkon Sagberg
Head of Sensor Development
Stig Torud
Stig Torud
VP Business Development