DocumentCode
2797819
Title
Microphone array network for ubiquitous sound acquisition
Author
Takagi, Tomoya ; Noguchi, Hiroki ; Kugata, Koji ; Yoshimoto, Masahiko ; Kawaguchi, Hiroshi
Author_Institution
Grad. Sch. of Eng., Kobe Univ., Kobe, Japan
fYear
2010
fDate
14-19 March 2010
Firstpage
1474
Lastpage
1477
Abstract
We propose a microphone array network that realizes ubiquitous sound acquisition. Nodes with 16 microphones are connected to form a huge sound acquisition system that carries out VAD, sound source localization and separation. The three operations are distributed among nodes. The VAD is implemented to manage power consumption. Consequently, the system consumes little power when speech is not active. The VAD module uses only 2.1 mW. The system can improve an SNR by 7.75 dB using 112 microphones.
Keywords
acoustic signal processing; array signal processing; blind source separation; data acquisition; microphone arrays; VAD; microphone array network; power 2.1 mW; power consumption; sound source localization; sound source separation; ubiquitous sound acquisition system; Microphone arrays; Microphone array; distribution network; low-power system; sensor network; ubiquitous sensing;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on
Conference_Location
Dallas, TX
ISSN
1520-6149
Print_ISBN
978-1-4244-4295-9
Electronic_ISBN
1520-6149
Type
conf
DOI
10.1109/ICASSP.2010.5495490
Filename
5495490
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