MEMS Microspeakers Are Truly Digital Transducers

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.

STMicroelectronics has revelead its contribution to the innovative Prizm smart audio device, which automatically plays the perfect song, based on the number of people in the room, their music tastes and habits, and even the time of day and ambient noise levels. ST’s leading-edge microcontroller and sensor technologies enable Prizm’s smart audio and touch interactions.

The new Accordo2 family from STMicroelectronics offers a fully integrated audio subsystem, including media decoding, audio routing, sound processing, and analog audio inputs and outputs, as well as an independent secure CAN (Controller Area Network) microcontroller subsystem. Until now, car infotainment manufacturers had to use multiple devices to achieve the same result that a single Accordo2 device delivers.

Semiconductor manufacturer STMicroelectronics has announced the opening of a new MEMS Microphone Lab in Taiwan to enhance its audio performance specifications. The advanced testing facility will answer engineers’ need for new MEMS microphone application development, enabling bit-perfect recording quality.

STMicroelectronics has introduced a new digital audio processor with a >100 dB SNR and HDR (High Dynamic Range) audio-signal acquisition technology. The device can process most digital input formats up to 6.1/7.1 channel and 192 kHz, 24-bit DVD-audio and DSD/SACD.