Liqian Luo Qing Cao Chengdu Huang Lili Wang Tarek F. Abdelzaher John A. Stankovic Michael Ward Design, implementation, and evaluation of EnviroMic: A storage-centric audio sensor network. 2009 5 TOSN 3 http://doi.acm.org/10.1145/1525856.1525860 db/journals/tosn/tosn5.html#LuoCHWASW09