DOA Estimation of Speech Signal Using Microphones Located at Vertices of Equilateral Triangle

Yusuke HIOKA; Nozomu HAMADA

DOA Estimation of Speech Signal Using Microphones Located at Vertices of Equilateral Triangle

Yusuke HIOKA, Nozomu HAMADA

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In this paper, we propose a DOA (Direction Of Arrival) estimation method of speech signal using three microphones. The angular resolution of the method is almost uniform with respect to DOA. Our previous DOA estimation method using the frequency-domain array data for a pair of microphones achieves high precision estimation. However, its resolution degrades as the propagating direction being apart from the array broadside. In the method presented here, we utilize three microphones located at vertices of equilateral triangle and integrate the frequency-domain array data for three pairs of microphones. For the estimation scheme, the subspace analysis for the integrated frequency array data is proposed. Through both computer simulations and experiments in a real acoustical environment, we show the efficiency of the proposed method.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E87-A No.3 pp.559-566

Publication Date: 2004/03/01

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Type of Manuscript: Special Section PAPER (Special Section on Applications and Implementations of Digital Signal Processing)

Category: Audio/Speech Coding

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Yusuke HIOKA, Nozomu HAMADA, "DOA Estimation of Speech Signal Using Microphones Located at Vertices of Equilateral Triangle" in IEICE TRANSACTIONS on Fundamentals, vol. E87-A, no. 3, pp. 559-566, March 2004, doi: .
Abstract: In this paper, we propose a DOA (Direction Of Arrival) estimation method of speech signal using three microphones. The angular resolution of the method is almost uniform with respect to DOA. Our previous DOA estimation method using the frequency-domain array data for a pair of microphones achieves high precision estimation. However, its resolution degrades as the propagating direction being apart from the array broadside. In the method presented here, we utilize three microphones located at vertices of equilateral triangle and integrate the frequency-domain array data for three pairs of microphones. For the estimation scheme, the subspace analysis for the integrated frequency array data is proposed. Through both computer simulations and experiments in a real acoustical environment, we show the efficiency of the proposed method.
URL: https://globals.ieice.org/en_transactions/fundamentals/10.1587/e87-a_3_559/_p

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@ARTICLE{e87-a_3_559,
author={Yusuke HIOKA, Nozomu HAMADA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={DOA Estimation of Speech Signal Using Microphones Located at Vertices of Equilateral Triangle},
year={2004},
volume={E87-A},
number={3},
pages={559-566},
abstract={In this paper, we propose a DOA (Direction Of Arrival) estimation method of speech signal using three microphones. The angular resolution of the method is almost uniform with respect to DOA. Our previous DOA estimation method using the frequency-domain array data for a pair of microphones achieves high precision estimation. However, its resolution degrades as the propagating direction being apart from the array broadside. In the method presented here, we utilize three microphones located at vertices of equilateral triangle and integrate the frequency-domain array data for three pairs of microphones. For the estimation scheme, the subspace analysis for the integrated frequency array data is proposed. Through both computer simulations and experiments in a real acoustical environment, we show the efficiency of the proposed method.},
keywords={},
doi={},
ISSN={},
month={March},}

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TY - JOUR
TI - DOA Estimation of Speech Signal Using Microphones Located at Vertices of Equilateral Triangle
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 559
EP - 566
AU - Yusuke HIOKA
AU - Nozomu HAMADA
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E87-A
IS - 3
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - March 2004
AB - In this paper, we propose a DOA (Direction Of Arrival) estimation method of speech signal using three microphones. The angular resolution of the method is almost uniform with respect to DOA. Our previous DOA estimation method using the frequency-domain array data for a pair of microphones achieves high precision estimation. However, its resolution degrades as the propagating direction being apart from the array broadside. In the method presented here, we utilize three microphones located at vertices of equilateral triangle and integrate the frequency-domain array data for three pairs of microphones. For the estimation scheme, the subspace analysis for the integrated frequency array data is proposed. Through both computer simulations and experiments in a real acoustical environment, we show the efficiency of the proposed method.
ER -