Header

UZH-Logo

Maintenance Infos

WHISPER: Wirelessly synchronized distributed audio sensor platform


Kiselev, Ilya; Ceolini, Enea; Wong, Daniel; de Cheveigné, Alain; Liu, Shih-Chii (2017). WHISPER: Wirelessly synchronized distributed audio sensor platform. In: Twelfth IEEE International Workshop on Practical Issues in Building Sensor Network Applications (IEEE SenseApp 2017), Singapore, 9 October 2017 - 12 October 2017, 35-43.

Abstract

This paper describes a distributed wireless acoustic sensor network (WASN) platform called WHISPER that is capable of synchronous multichannel sampling at different spatial locations with a sampling clock whose relative jitter is less than 300 ns. The platform comprises up to four data acquisition modules with onboard computing capabilities, and that can form an ad-hoc Wi-Fi network allowing an additional processing module such as a laptop or a smartphone to be connected if needed. Each acquisition module holds four digital SPI microphones with a total of 16 microphones for the entire system. Wireless synchronization of the sampling on each platform is implemented using a separate wireless module operating in the 902-928 MHz ISM band. Usage of this system is demonstrated in a real-time application involving spatial sound filtering through a beamforming algorithm.

Abstract

This paper describes a distributed wireless acoustic sensor network (WASN) platform called WHISPER that is capable of synchronous multichannel sampling at different spatial locations with a sampling clock whose relative jitter is less than 300 ns. The platform comprises up to four data acquisition modules with onboard computing capabilities, and that can form an ad-hoc Wi-Fi network allowing an additional processing module such as a laptop or a smartphone to be connected if needed. Each acquisition module holds four digital SPI microphones with a total of 16 microphones for the entire system. Wireless synchronization of the sampling on each platform is implemented using a separate wireless module operating in the 902-928 MHz ISM band. Usage of this system is demonstrated in a real-time application involving spatial sound filtering through a beamforming algorithm.

Statistics

Citations

Dimensions.ai Metrics
5 citations in Web of Science®
6 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

13 downloads since deposited on 23 Feb 2018
13 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Conference or Workshop Item (Paper), refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Neuroinformatics
Dewey Decimal Classification:570 Life sciences; biology
Scopus Subject Areas:Physical Sciences > Computer Networks and Communications
Physical Sciences > Hardware and Architecture
Physical Sciences > Instrumentation
Language:English
Event End Date:12 October 2017
Deposited On:23 Feb 2018 09:25
Last Modified:21 May 2021 19:26
Publisher:Institute of Electrical and Electronics Engineers
Series Name:Proceedings of the Conference on Local Computer Networks Workshop (LCN Workshops)
Additional Information:© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
OA Status:Green
Publisher DOI:https://doi.org/10.1109/LCN.Workshops.2017.62

Download

Green Open Access

Download PDF  'WHISPER: Wirelessly synchronized distributed audio sensor platform'.
Preview
Content: Accepted Version
Filetype: PDF
Size: 518kB