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TASLP
2010

Using Reverberation to Improve Range and Elevation Discrimination for Small Array Sound Source Localization

8 years 10 months ago
Using Reverberation to Improve Range and Elevation Discrimination for Small Array Sound Source Localization
Sound source localization (SSL) is an essential task in many applications involving speech capture and enhancement. As such, speaker localization with microphone arrays has received significant research attention. Nevertheless, existing SSL algorithms for small arrays still have two significant limitations: lack of range resolution, and accuracy degradation with increasing reverberation. The latter is natural and expected, given that strong reflections can have amplitudes similar to that of the direct signal, but different directions of arrival. Therefore, correctly modeling the room and compensating for the reflections should reduce the degradation due to reverberation. In this paper, we show a stronger result. If modeled correctly, early reflections can be used to provide more information about the source location than would have been available in an anechoic scenario. The modeling not only compensates for the reverberation, but also significantly increases resolution for range and e...
Flavio Ribeiro, Cha Zhang, Dinei A. F. Florê
Added 21 May 2011
Updated 21 May 2011
Type Journal
Year 2010
Where TASLP
Authors Flavio Ribeiro, Cha Zhang, Dinei A. F. Florêncio, Demba E. Ba
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