TY - GEN
T1 - Continuous observation and archival of acoustic scenes usingwireless sensor networks
AU - Wichern, Gordon
AU - Kwon, Homin
AU - Spanias, Andreas
AU - Fink, Alex
AU - Thornburg, Harvey
PY - 2009
Y1 - 2009
N2 - Acoustic scene analysis has proven an invaluable tool in diverse fields ranging from biology to defense and security. Wireless sensor networks present an attractive means of implementing an acoustic monitoring system due to their low cost and ability to be easily deployed in a wide range of areas. In this paper acoustic features are extracted at the sensor level, and then transmitted to the base station where acoustic events are segmented using a dynamic Bayseian network. Segmented events are then indexed with the time and location where they occurred, allowing users to link events in terms of time, place, and acoustic characteristics. Our experiments show that a feature set that allows for general characterization of diverse sound environments can be extracted at the sensor level, while an illustrative example shows the segmentation algorithm detecting footsteps in low SNR conditions.
AB - Acoustic scene analysis has proven an invaluable tool in diverse fields ranging from biology to defense and security. Wireless sensor networks present an attractive means of implementing an acoustic monitoring system due to their low cost and ability to be easily deployed in a wide range of areas. In this paper acoustic features are extracted at the sensor level, and then transmitted to the base station where acoustic events are segmented using a dynamic Bayseian network. Segmented events are then indexed with the time and location where they occurred, allowing users to link events in terms of time, place, and acoustic characteristics. Our experiments show that a feature set that allows for general characterization of diverse sound environments can be extracted at the sensor level, while an illustrative example shows the segmentation algorithm detecting footsteps in low SNR conditions.
KW - Acoustic scene analysis
KW - Acoustic signal detection
KW - Database query processing
KW - Wireless sensor networks
UR - http://www.scopus.com/inward/record.url?scp=70449589090&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70449589090&partnerID=8YFLogxK
U2 - 10.1109/ICDSP.2009.5201082
DO - 10.1109/ICDSP.2009.5201082
M3 - Conference contribution
AN - SCOPUS:70449589090
SN - 9781424432981
T3 - DSP 2009: 16th International Conference on Digital Signal Processing, Proceedings
BT - DSP 2009:16th International Conference on Digital Signal Processing, Proceedings
T2 - DSP 2009:16th International Conference on Digital Signal Processing
Y2 - 5 July 2009 through 7 July 2009
ER -