A Low-Cost, High-Quality MEMS Ambisonic Microphone

Zalles G, Kamel Y, Anderson I, Lee MY, Neil C, Henry M, Cappiello S, Mydlarz C, Baglione M, Roginska A. A Low-Cost, High-Quality MEMS Ambisonic Microphone. In: AES Convention 143. Audio Engineering Society; 2017. Paper 9857. Available from: https://aes.org/publications/elibrary-page/?id=19254

@inproceedings{Zalles2017_19254,
  author = {Zalles, Gabriel and Kamel, Yigal and Anderson, Ian and Lee, Ming Yang and Neil, Chris and Henry, Monique and Cappiello, Spencer and Mydlarz, Charlie and Baglione, Melody and Roginska, Agnieszka},
  title = {{A Low-Cost, High-Quality MEMS Ambisonic Microphone}},
  booktitle = {AES Convention 143},
  note = {Paper 9857},
  year = {2017},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19254}
}

TY  - CPAPER
TI  - 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
T2  - AES Convention 143
M1  - Paper 9857
PY  - 2017
DA  - 2017/10/06
UR  - https://aes.org/publications/elibrary-page/?id=19254
PB  - Audio Engineering Society
LA  - en
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). 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.
ER  -