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Mutual-Information-Based Sensor Placement for Spatial Sound Field Recording

Abstract: 

A sensor (microphone) placement method based on mutual information for spatial sound field recording is proposed. The sound field recording methods using distributed sensors enable the estimation of the sound field inside a target region of arbitrary shape; however, it is a difficult task to find the best placement of sensors. We focus on the mutual-information-based sensor placement method in which spatial phenomena are modeled as a Gaussian process (GP). We propose the use of the sound-field-interpolation kernel for the covariance of measurements in a GP model to obtain the sensor placement suitable for sound field recording. We also extend the method to treat broadband signals and derive an efficient algorithm based on block matrix inversion. Numerical simulation results indicated that the proposed method achieves accurate sound field estimation compared with a method using the generally used Gaussian kernel.

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Paper Details

Authors:
Kentaro Ariga, Tomoya Nishida, Shoichi Koyama, Natsuki Ueno, Hiroshi Saruwatari
Submitted On:
14 May 2020 - 6:22am
Short Link:
Type:
Presentation Slides
Event:
Presenter's Name:
Tomoya Nishida
Paper Code:
AUD-L6.4
Document Year:
2020
Cite

Document Files

ICASSP2020_Nishida.pdf

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[1] Kentaro Ariga, Tomoya Nishida, Shoichi Koyama, Natsuki Ueno, Hiroshi Saruwatari, "Mutual-Information-Based Sensor Placement for Spatial Sound Field Recording", IEEE SigPort, 2020. [Online]. Available: http://sigport.org/5278. Accessed: Jul. 13, 2020.
@article{5278-20,
url = {http://sigport.org/5278},
author = {Kentaro Ariga; Tomoya Nishida; Shoichi Koyama; Natsuki Ueno; Hiroshi Saruwatari },
publisher = {IEEE SigPort},
title = {Mutual-Information-Based Sensor Placement for Spatial Sound Field Recording},
year = {2020} }
TY - EJOUR
T1 - Mutual-Information-Based Sensor Placement for Spatial Sound Field Recording
AU - Kentaro Ariga; Tomoya Nishida; Shoichi Koyama; Natsuki Ueno; Hiroshi Saruwatari
PY - 2020
PB - IEEE SigPort
UR - http://sigport.org/5278
ER -
Kentaro Ariga, Tomoya Nishida, Shoichi Koyama, Natsuki Ueno, Hiroshi Saruwatari. (2020). Mutual-Information-Based Sensor Placement for Spatial Sound Field Recording. IEEE SigPort. http://sigport.org/5278
Kentaro Ariga, Tomoya Nishida, Shoichi Koyama, Natsuki Ueno, Hiroshi Saruwatari, 2020. Mutual-Information-Based Sensor Placement for Spatial Sound Field Recording. Available at: http://sigport.org/5278.
Kentaro Ariga, Tomoya Nishida, Shoichi Koyama, Natsuki Ueno, Hiroshi Saruwatari. (2020). "Mutual-Information-Based Sensor Placement for Spatial Sound Field Recording." Web.
1. Kentaro Ariga, Tomoya Nishida, Shoichi Koyama, Natsuki Ueno, Hiroshi Saruwatari. Mutual-Information-Based Sensor Placement for Spatial Sound Field Recording [Internet]. IEEE SigPort; 2020. Available from : http://sigport.org/5278