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Updated: Mar 23, 2026

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention

Published on: December 20, 2024

Sound field reconstruction using a spherical microphone array.

Efren Fernandez-Grande¹

¹Acoustic Technology, Department of Electrical Engineering, Technical University of Denmark (DTU), Building 352, Ørsteds Plads, DK-2800 Kongens Lyngby, Denmark.

The Journal of the Acoustical Society of America

|April 3, 2016

Summary

This summary is machine-generated.

This study introduces a spherical equivalent source method to reconstruct sound fields using microphone arrays. The technique accurately infers acoustic quantities and allows for virtual transparency of the array.

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Area of Science:

Acoustics
Signal Processing
Numerical Methods

Background:

Reconstructing sound fields is crucial for acoustic analysis.
Spherical microphone arrays offer advantages for capturing complex sound fields.
Existing methods may have limitations in accuracy and flexibility.

Purpose of the Study:

To present a novel method for reconstructing arbitrary sound fields using a spherical microphone array.
To enable the inference of all acoustic quantities (sound pressure, particle velocity, sound intensity).
To allow for the removal of scattering effects, rendering the array virtually transparent.

Main Methods:

The spherical equivalent source method utilizes a point source expansion on a rigid spherical array.
The sound field is described using a Neumann Green's function accounting for the sphere.
Sequential measurements can be combined for extended measurement areas.

Main Results:

The method successfully reconstructs sound fields in a 3D domain.
It allows for the reconstruction of the total or incident sound field.
The array can be made virtually transparent by removing scattering effects.

Conclusions:

The spherical equivalent source method provides a robust way to reconstruct sound fields.
The technique offers flexibility in solution strategies and potential for future advancements.
This method enhances acoustic measurements by enabling accurate inference and virtual array transparency.