Ultrasound, MEMS

Speaker Chip Uses Ultrasound to Crack Volume Limits
This MEMS tech sounds ready to break out of the earbud niche
https://spectrum.ieee.org/mems-speakers-xmems

Sound chip
A sound chip is an integrated circuit (chip) designed to produce audio signals through digital, analog or mixed-mode electronics. Sound chips are typically fabricated on metal–oxide–semiconductor (MOS) mixed-signal chips that process audio signals. They normally contain audio components such as oscillators, envelope controllers, samplers, filters, amplifiers, and envelope generators.
https://en.wikipedia.org/wiki/Sound_chip

Seonglae Cho
