Mw. Hoffman et al., GSC-based spatial voice activity detection for enhanced speech coding in the presence of competing speech, IEEE SPEECH, 9(2), 2001, pp. 175-179
An array of microphones is used for both noise suppression and spatial voic
e activity detection (SVAD). A generalized sidelobe canceler (GSC) is emplo
yed for robust adaptive interference rejection and the signals within the G
SC are also exploited to provide speech activity detection for the desired
signal. The SVAD shows promising results for the difficult case of an inter
fering speaker.