EUROSPEECH 2003 - INTERSPEECH 2003
In this contribution, we propose a DOA (Direction Of Arrival) estimation method of speech signal whose angular resolution is almost uniform with respect to DOA. Our previous DOA estimation method achieves high precision with only two microphones, however its resolution degrades as the propagating direction apart from the array broadside. In the proposed method, the equilateral-triangular microphone array is adopted, and the subspace analysis is applied. The efficiency of the proposed method is shown both from the simulation and experimental results.
Bibliographic reference. Hioka, Yusuke / Hamada, Nozomu (2003): "DOA estimation of speech signal using equilateral-triangular microphone array", In EUROSPEECH-2003, 1717-1720.