Browsing by Author "Qr, Z"

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    Automotive three-microphone voice activity detector and noise-canceller
    (Massey University, 2005) Qr, Z; Moir, T.J.
    This paper addresses issues in improving hands-free speech recognition performance in car environments. A three-microphone array has been used to form a beamformer with leastmean squares (LMS) to improve Signal to Noise Ratio (SNR). A three-microphone array has been paralleled to a Voice Activity Detection (VAD). The VAD uses time-delay estimation together with magnitude-squared coherence (MSC).