A low-cost, high-quality MEMS ambisonic microphone

Gabriel Zalles, Yigal Kamel, Ian Anderson, Ming Yang Lee, Chris Neil, Monique Henry, Spencer Cappiello, Charlie Mydlarz, Melody Baglione, Agnieszka Roginska

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

While public interest for technologies that produce and deliver immersive VR content has been growing, the price point for these tools has remained relatively high. This paper presents a low-cost, high-quality first-order ambisonics (FOA) microphone based on low-noise microelectromechanical systems (MEMS). Namely, this paper details the design, fabrication, and testing of a MEMS FOA microphone including its frequency and directivity response. To facilitate high resolution directivity response measurements, a low-cost, automatic rotating microphone mount using an Arduino was designed. The automatic control of this platform was integrated into an in-house acoustic measurement library built in MATLAB, allowing the user to generate polar plots at resolutions down to 1.8°. Subjective assessments compared the FOA mic prototype to commercially available FOA solutions at higher price points.

Original languageEnglish (US)
Title of host publication143rd Audio Engineering Society Convention 2017, AES 2017
PublisherAudio Engineering Society
Pages362-370
Number of pages9
ISBN (Electronic)9781510870703
StatePublished - 2017
Event143rd Audio Engineering Society Convention 2017, AES 2017 - New York, United States
Duration: Oct 18 2017Oct 20 2017

Publication series

Name143rd Audio Engineering Society Convention 2017, AES 2017
Volume1

Other

Other143rd Audio Engineering Society Convention 2017, AES 2017
CountryUnited States
CityNew York
Period10/18/1710/20/17

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Modeling and Simulation
  • Acoustics and Ultrasonics

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