Title :
GSC-based spatial voice activity detection for enhanced speech coding in the presence of competing speech
Author :
Hoffman, M.W. ; Li, Zuyi
Author_Institution :
Dept. of Electr. Eng., Nebraska Univ., Lincoln, NE
fDate :
2/1/2001 12:00:00 AM
Abstract :
An array of microphones is used for both noise suppression and spatial voice activity detection (SVAD). A generalized sidelobe canceler (GSC) is employed for robust adaptive interference rejection and the signals within the GSC are also exploited to provide speech activity detection for the desired signal. The SVAD shows promising results for the difficult case of an interfering speaker
Keywords :
acoustic signal detection; acoustic transducer arrays; adaptive filters; adaptive signal processing; array signal processing; filtering theory; interference suppression; microphones; speech coding; GSC-based spatial voice activity detection; SVAD; adaptive interference rejection; adaptive spatial filtering; competing speech; generalized sidelobe canceler; interfering speaker; microphone array; noise suppression; speech coding; Adaptive arrays; Background noise; Interference cancellation; Microphone arrays; Multiaccess communication; Noise cancellation; Noise robustness; Speech coding; Speech enhancement; Working environment noise;
Journal_Title :
Speech and Audio Processing, IEEE Transactions on
