R&D Stories: How Optical Technology Enables a Generational Shift in MEMS Microphone Performance

The article summarizes the evolution of MEMS microphone technology and describes the benefits of optical microphones over conventional solutions. This is a crucial reading to understand how the first generation of optical MEMS microphones have smashed the limits of SNR and dynamic range of miniature microphones, with 80dBA SNR (14dBA noise floor), 132dB dynamic range, 24-bit digital output and all with ultra-low power consumption.

In an interesting development, Soranik, a leading IEM manufacturer from Vietnam launched its new MEMS-2 in-ear monitor (IEM) design, which uses not one but two different MEMS drivers, both reproducing a full-range signal with no crossover. Inside the Soranik MEMS 2 IEMs we can find one USound Conamara 6mm tweeter, known for its thinness and integration flexibility, along with an xMEMS Montara full-range monolithic MEMS microspeaker.

In this article for Voice Coil, Mike Klasco (Menlo Scientific) recaps MEMS Drivers and related hot technologies for 2021, providing an update about products and companies that stood out in 2020. The article, which summarizes the more extensive reports published by audioXpress in January 2020 and 2021, looks at the impact of microelectromechanical systems (MEMS) for audio and discusses the implications for other game-changing technologies that reduce size, increase performance, extend battery life, and enhance features and functionality in headphones, wearables and compact speakers.

This VC Spotlight article, from Mike Klasco includes some really great insight on upcoming developments and new companies active in the MEMS field. Microelectromechanical systems (MEMS) loudspeakers are just now appearing. As Mike explains “this is a really new technology, so new that only recently were functional lab prototypes operational.” Article originally published in Voice Coil, May 2015.