Zeszyty Naukowe Politechniki Białostockiej. Informatyka Passive Sound Source Localization System
نویسنده
چکیده
Acoustic source localization system for speech signals based on five microphone array was developed. Three dimensional position computation is based on time delay estimation between pairs of microphones. The psyhoacoustically motivated voice activity detector was used to robustly determine activity of speaker in presence of background noise. The detector was based on modulation properties of human speech. Good performance was obtain by selecting frames with speech and nulling frequency bands without speech components. As the result more precisely computation of the time delay was possible. Real experiments shown good immunity of the proposed algorithm to noise and reverberation.
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