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
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;
Conference_Titel :
Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on
Conference_Location :
Dallas, TX
Print_ISBN :
978-1-4244-4295-9
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2010.5495490
