Vibration Characteristics of Various Surfaces Using an LDV for Long-Range Voice Acquisition Li, Rui ; Wang, Tao ; Zhu, Zhigang ; Xiao, Wen Abstract Publication: IEEE Sensors Journal Pub Date: June 2011 DOI: 10.1109/JSEN.2010.2093125 Bibcode: 2011ISenJ..11.1415L