TY - GEN
T1 - A low-cost, high-quality MEMS ambisonic microphone
AU - Zalles, Gabriel
AU - Kamel, Yigal
AU - Anderson, Ian
AU - Lee, Ming Yang
AU - Neil, Chris
AU - Henry, Monique
AU - Cappiello, Spencer
AU - Mydlarz, Charlie
AU - Baglione, Melody
AU - Roginska, Agnieszka
N1 - Publisher Copyright:
Copyright © (2017) by the Audio Engineering Society All rights reserved.
PY - 2017
Y1 - 2017
N2 - 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.
AB - 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.
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M3 - Conference contribution
AN - SCOPUS:85059053368
T3 - 143rd Audio Engineering Society Convention 2017, AES 2017
SP - 362
EP - 370
BT - 143rd Audio Engineering Society Convention 2017, AES 2017
PB - Audio Engineering Society
T2 - 143rd Audio Engineering Society Convention 2017, AES 2017
Y2 - 18 October 2017 through 20 October 2017
ER -