Iterative Estimation and Compensation of Signal Direction for Moving Sound Source by Mobile Microphone Array

Toshiharu HORIUCHI; Mitsunori MIZUMACHI; Satoshi NAKAMURA

Iterative Estimation and Compensation of Signal Direction for Moving Sound Source by Mobile Microphone Array

Toshiharu HORIUCHI, Mitsunori MIZUMACHI, Satoshi NAKAMURA

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This paper proposes a simple method for estimation and compensation of signal direction, to deal with relative change of sound source location caused by the movements of a microphone array and a sound source. This method introduces a delay filter that has shifted and sampled sinc functions. This paper presents a concept for the joint optimization of arrival time differences and of the coordinate system of a mobile microphone array. We use the LMS algorithm to derive this method by maintaining a certain relationship between the directions of the microphone array and the sound source directions. This method directly estimates the relative directions of the microphone array to the sound source directions by minimizing the relative differences of arrival time among the observed signals, not by estimating the time difference of arrival (TDOA) between two observed signals. This method also compensates the time delay of the observed signals simultaneously, and it has a feature to maintain that the output signals are in phase. Simulation results support effectiveness of the method.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E87-A No.11 pp.2950-2956

Publication Date: 2004/11/01

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Type of Manuscript: PAPER

Category: Engineering Acoustics

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Toshiharu HORIUCHI, Mitsunori MIZUMACHI, Satoshi NAKAMURA, "Iterative Estimation and Compensation of Signal Direction for Moving Sound Source by Mobile Microphone Array" in IEICE TRANSACTIONS on Fundamentals, vol. E87-A, no. 11, pp. 2950-2956, November 2004, doi: .
Abstract: This paper proposes a simple method for estimation and compensation of signal direction, to deal with relative change of sound source location caused by the movements of a microphone array and a sound source. This method introduces a delay filter that has shifted and sampled sinc functions. This paper presents a concept for the joint optimization of arrival time differences and of the coordinate system of a mobile microphone array. We use the LMS algorithm to derive this method by maintaining a certain relationship between the directions of the microphone array and the sound source directions. This method directly estimates the relative directions of the microphone array to the sound source directions by minimizing the relative differences of arrival time among the observed signals, not by estimating the time difference of arrival (TDOA) between two observed signals. This method also compensates the time delay of the observed signals simultaneously, and it has a feature to maintain that the output signals are in phase. Simulation results support effectiveness of the method.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e87-a_11_2950/_p

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@ARTICLE{e87-a_11_2950,
author={Toshiharu HORIUCHI, Mitsunori MIZUMACHI, Satoshi NAKAMURA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Iterative Estimation and Compensation of Signal Direction for Moving Sound Source by Mobile Microphone Array},
year={2004},
volume={E87-A},
number={11},
pages={2950-2956},
abstract={This paper proposes a simple method for estimation and compensation of signal direction, to deal with relative change of sound source location caused by the movements of a microphone array and a sound source. This method introduces a delay filter that has shifted and sampled sinc functions. This paper presents a concept for the joint optimization of arrival time differences and of the coordinate system of a mobile microphone array. We use the LMS algorithm to derive this method by maintaining a certain relationship between the directions of the microphone array and the sound source directions. This method directly estimates the relative directions of the microphone array to the sound source directions by minimizing the relative differences of arrival time among the observed signals, not by estimating the time difference of arrival (TDOA) between two observed signals. This method also compensates the time delay of the observed signals simultaneously, and it has a feature to maintain that the output signals are in phase. Simulation results support effectiveness of the method.},
keywords={},
doi={},
ISSN={},
month={November},}

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TY - JOUR
TI - Iterative Estimation and Compensation of Signal Direction for Moving Sound Source by Mobile Microphone Array
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2950
EP - 2956
AU - Toshiharu HORIUCHI
AU - Mitsunori MIZUMACHI
AU - Satoshi NAKAMURA
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E87-A
IS - 11
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - November 2004
AB - This paper proposes a simple method for estimation and compensation of signal direction, to deal with relative change of sound source location caused by the movements of a microphone array and a sound source. This method introduces a delay filter that has shifted and sampled sinc functions. This paper presents a concept for the joint optimization of arrival time differences and of the coordinate system of a mobile microphone array. We use the LMS algorithm to derive this method by maintaining a certain relationship between the directions of the microphone array and the sound source directions. This method directly estimates the relative directions of the microphone array to the sound source directions by minimizing the relative differences of arrival time among the observed signals, not by estimating the time difference of arrival (TDOA) between two observed signals. This method also compensates the time delay of the observed signals simultaneously, and it has a feature to maintain that the output signals are in phase. Simulation results support effectiveness of the method.
ER -