Sorry, you need to enable JavaScript to visit this website.

facebooktwittermailshare

Passive online geometry calibration of acoustic sensor networks

Abstract: 

As we are surrounded by an increased number of mobile devices equipped with wireless links and multiple microphones, e.g., smartphones, tablets, laptops and hearing aids, using them collaboratively for acoustic processing is a promising platform for emerging applications.
These devices make up an acoustic sensor network comprised of nodes, i.e. distributed devices equipped with microphone arrays, communication unit and processing unit. Algorithms for speaker separation and localization using such a network require a precise knowledge of the nodes' locations and orientations.
To acquire this knowledge, a recently introduced approach proposed a combined direction of arrival (DoA) and time difference of arrival (TDoA) target function for off-line calibration with dedicated recordings.
This paper proposes an extension of this approach to a novel online method with two new features:
First, by employing an evolutionary algorithm on incremental measurements, it is online and fast enough for real-time application.
Second, by using the sparse spike representation computed in a cochlear model for TDoA estimation, the amount of information shared between the nodes by transmission is reduced while the accuracy is increased.
The proposed approach is able to calibrate an acoustic senor network online during a meeting in a reverberant conference room.

up
0 users have voted:

Paper Details

Authors:
Axel Plinge, Gernot A. Fink, Sharon Gannot
Submitted On:
13 April 2018 - 5:46am
Short Link:
Type:
Poster
Event:
Presenter's Name:
Sharon Gannot
Paper Code:
AASP-P4
Document Year:
2018
Cite

Document Files

pog-poster-v6.pdf

(44 downloads)

Subscribe

[1] Axel Plinge, Gernot A. Fink, Sharon Gannot, "Passive online geometry calibration of acoustic sensor networks", IEEE SigPort, 2018. [Online]. Available: http://sigport.org/2673. Accessed: Aug. 18, 2018.
@article{2673-18,
url = {http://sigport.org/2673},
author = {Axel Plinge; Gernot A. Fink; Sharon Gannot },
publisher = {IEEE SigPort},
title = {Passive online geometry calibration of acoustic sensor networks},
year = {2018} }
TY - EJOUR
T1 - Passive online geometry calibration of acoustic sensor networks
AU - Axel Plinge; Gernot A. Fink; Sharon Gannot
PY - 2018
PB - IEEE SigPort
UR - http://sigport.org/2673
ER -
Axel Plinge, Gernot A. Fink, Sharon Gannot. (2018). Passive online geometry calibration of acoustic sensor networks. IEEE SigPort. http://sigport.org/2673
Axel Plinge, Gernot A. Fink, Sharon Gannot, 2018. Passive online geometry calibration of acoustic sensor networks. Available at: http://sigport.org/2673.
Axel Plinge, Gernot A. Fink, Sharon Gannot. (2018). "Passive online geometry calibration of acoustic sensor networks." Web.
1. Axel Plinge, Gernot A. Fink, Sharon Gannot. Passive online geometry calibration of acoustic sensor networks [Internet]. IEEE SigPort; 2018. Available from : http://sigport.org/2673