Modular Design for Spherical Microphone Arrays

Publication data
Type	Paper
Title	Modular Design for Spherical Microphone Arrays
Description
Authors
Year	2018
Language	English (en)
License	CC-BY-SA-3.0
Cite as	González, R., Pearce, J. and Lokki, T., 2018, August. Modular Design for Spherical Microphone Arrays. In Audio Engineering Society Conference: 2018 AES International Conference on Audio for Virtual and Augmented Reality. 2018 AES International Conference on Audio for Virtual and Augmented Reality (August 2018). Paper Number: P3-10. http://www.aes.org/e-lib/browse.cfm?elib=19701

Project data
Type
Authors	González R. J.M.Pearce Lokki T.
Location	Michigan, USA
Status	Designed Modelled Prototyped Verified
Verified by	Aalto University
Years
Links	[[:https://www.aes.org/e-lib/browse.cfm?elib=19701%7C]]
OKH Manifest	Download

Device data
Hardware license	CERN-OHL-S
Certifications	Start OSHWA certification

Spherical microphones arrays are commonly utilized for recording, analyzing and reproducing sound-fields. In the context of higher-order Ambisonics, the spatial resolution depends on the number and distribution of sensors over the surface of a sphere. Commercially available arrays have set configurations that cannot be changed, which limits their usability for experimental and educational spatial audio applications. Therefore, an opensource modular design using MEMS microphones and 3D printing is proposed for selectively capturing frequency-dependent spatial components of sound-fields. Following a modular paradigm, the presented device is low cost and decomposes the array into smaller units (a matrix, connectors and microphones), which can be easily rearranged to capture up to third-order spherical harmonic signals with various physical configurations.

Page data
Keywords	open source hardware, spherical microphone array modular microphone, 3D printing, FOSH, open hardware, osat, physics, MOST completed projects and publications, Sound, science, open source, OSAT 3D-Printable Designs, Open source scientific hardware
SDG	SDG09 Industry innovation and infrastructure
Authors
License	CC-BY-SA-3.0
Organizations	Aalto University, MOST, MTU
Language	English (en)
Translations	Russian
Related	1 subpages, 7 pages link here
Views	137 page views (analytics)
Created	August 22, 2018 by Joshua M. Pearce
Last edit	November 27, 2025 by Maintenance script
Cite as	"Modular Design for Spherical Microphone Arrays". Appropedia. 2018–2025. Retrieved June 4, 2026.
API queries	basic, semantic, html, files, more

See also