Lee Ngee Tan Bengt J. Borgstrom Abeer Alwan Voice activity detection using harmonic frequency components in likelihood ratio test. 4466-4469 2010 ICASSP http://dx.doi.org/10.1109/ICASSP.2010.5495611 conf/icassp/2010 db/conf/icassp/icassp2010.html#TanBA10