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NASA’s Infrasound Microphone Detects “Clear-Air” Turbulence Hundreds of Miles Away

NASA's infrasound microphone allows pilots and air traffic control to identify aircraft wake vortices, clear air turbulence, and tornadoes hundreds of miles away.

March 22, 2021 by Antonio Anzaldua Jr.

More on Noise-Canceling Headphones: Adaptive Controllers in Active Noise Control Systems

Active noise control is a principle technology in noise-canceling headphones. But there's a nuanced part of the ANC conversation that warrants discussion: adaptive controllers and cancelation paths.

November 17, 2020 by Steve Arar

Digital MEMs Microphone Extends Smart Speaker Battery Life by Ten Times

The power-saving architecture behind the MEMs microphone side-steps the pitfalls of always-on listening battery consumption.

July 30, 2020 by Jake Hertz

Vesper Releases New MEMS VM3000 Microphone

Vesper has announced their first piezoelectric digital MEMS microphone for audio applications in voice recognition.

July 26, 2019 by Robin Mitchell

Piezoelectric Speakers and Ultrasonic Sensors Abound: A MEMS-Based Audio Roundup

Sound can be used to detect objects and communicate. This roundup looks at three new MEMS-based microphones and ultrasonic sensors on display at Sensor Expo 2018.

August 16, 2018 by Mark Hughes

MOSQUITO Attack Uses Headphones, Speakers, and Microphones to Leak Data Over Ultrasonic Frequencies

A cybersecurity research group in Israel has recently published a paper in which they describe the MOSQUITO attack—an attack that can reverse speakers and microphones in air-gapped computers, and use them to send data to one another using ultra-sonic frequencies.

March 20, 2018 by Chantelle Dubois

A New High-Performance Digital MEMS Microphone from Infineon

Here's a breakdown of Infineon's new high-performance digital MEMS microphone that offers power-optimized modes for low-current consumption devices.

February 21, 2018 by Nick Davis

Improving on an Improvement: A New MEMS Microphone from PUI Audio

MEMS microphones offer advantages over electret devices and now we have the PMM-3738-VM1000-R, which offers advantages over the standard MEMS approach.

June 01, 2017 by Robert Keim

An Introduction to Audio Electronics: Sound, Microphones, Speakers, and Amplifiers

Learn about the basics of audio electronics, which convert sound signals into electrical signals, process these electrical signals, and convert them back into sound.

May 03, 2017 by Nick Davis

Improving on the Electret: An Introduction to MEMS Microphones

This technical brief explains the physical characteristics and the benefits of microphones based on MEMS technology.

February 14, 2017 by Robert Keim

Teardown Tuesday: Amazon Echo Dot v2

The Amazon Echo Dot v2 is out. Here's a look inside.

November 01, 2016 by Mark Hughes

Teardown Tuesday: Wearable Audio Recorder

Never miss that cute moment again! Kapture is a unique audio recorder that constantly records. What's inside of it?

May 17, 2016 by Alex Udanis

An Intro to Adaptive Echo Cancellers

A introduction to adaptive echo cancellers using Matlab simulation.

December 07, 2015 by Tim Youngblood

Knowles Introduces the Market’s Smallest and Most Power Efficient Digital MEMS Microphone

Knowles introduces the most advanced Inter-IC Sound, or I²S, interface MEMS (Micro-Electro-Mechanical Systems) microphone for wearables, remote controllers, automotive, and smart home automation and security.

June 03, 2015 by Jennifer A. Diffley