Robust Noise Reduction Based on Stochastic Spatial Features
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M. Mizumachi, "Robust Noise Reduction Based on Stochastic Spatial Features," Paper 7709, (2009 May.). doi:
M. Mizumachi, "Robust Noise Reduction Based on Stochastic Spatial Features," Paper 7709, (2009 May.). doi:
Abstract: This paper proposes a robust noise reduction method relying on stochastic spatial features. Almost all of noise reduction methods have both strong and weak sides in the real world. In this paper, time evolution of direction of arrival (DOA) and its stochastic reliability are the clues for selecting a suitable approach of noise reduction under time-variant noisy environments, where a DOA is an important spatial feature in beamforming for noise reduction. On the other hand, single channel approaches for noise reduction may be reasonable when DOA estimates are not reliable. Then, either spectral subtraction or beamforming is selected out for achieving robust noise reduction depending on a DOA estimate and its reliability. The proposed method had an advantage in noise reduction compared with a conventional approach.
@article{mizumachi2009robust,
author={mizumachi, mitsunori},
journal={journal of the audio engineering society},
title={robust noise reduction based on stochastic spatial features},
year={2009},
volume={},
number={},
pages={},
doi={},
month={may},}
@article{mizumachi2009robust,
author={mizumachi, mitsunori},
journal={journal of the audio engineering society},
title={robust noise reduction based on stochastic spatial features},
year={2009},
volume={},
number={},
pages={},
doi={},
month={may},
abstract={this paper proposes a robust noise reduction method relying on stochastic spatial features. almost all of noise reduction methods have both strong and weak sides in the real world. in this paper, time evolution of direction of arrival (doa) and its stochastic reliability are the clues for selecting a suitable approach of noise reduction under time-variant noisy environments, where a doa is an important spatial feature in beamforming for noise reduction. on the other hand, single channel approaches for noise reduction may be reasonable when doa estimates are not reliable. then, either spectral subtraction or beamforming is selected out for achieving robust noise reduction depending on a doa estimate and its reliability. the proposed method had an advantage in noise reduction compared with a conventional approach.},}
TY - paper
TI - Robust Noise Reduction Based on Stochastic Spatial Features
SP -
EP -
AU - Mizumachi, Mitsunori
PY - 2009
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2009
TY - paper
TI - Robust Noise Reduction Based on Stochastic Spatial Features
SP -
EP -
AU - Mizumachi, Mitsunori
PY - 2009
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2009
AB - This paper proposes a robust noise reduction method relying on stochastic spatial features. Almost all of noise reduction methods have both strong and weak sides in the real world. In this paper, time evolution of direction of arrival (DOA) and its stochastic reliability are the clues for selecting a suitable approach of noise reduction under time-variant noisy environments, where a DOA is an important spatial feature in beamforming for noise reduction. On the other hand, single channel approaches for noise reduction may be reasonable when DOA estimates are not reliable. Then, either spectral subtraction or beamforming is selected out for achieving robust noise reduction depending on a DOA estimate and its reliability. The proposed method had an advantage in noise reduction compared with a conventional approach.
This paper proposes a robust noise reduction method relying on stochastic spatial features. Almost all of noise reduction methods have both strong and weak sides in the real world. In this paper, time evolution of direction of arrival (DOA) and its stochastic reliability are the clues for selecting a suitable approach of noise reduction under time-variant noisy environments, where a DOA is an important spatial feature in beamforming for noise reduction. On the other hand, single channel approaches for noise reduction may be reasonable when DOA estimates are not reliable. Then, either spectral subtraction or beamforming is selected out for achieving robust noise reduction depending on a DOA estimate and its reliability. The proposed method had an advantage in noise reduction compared with a conventional approach.
Author:
Mizumachi, Mitsunori
Affiliation:
Kyushu Institute of Technology, Fukuoka, Japan
AES Convention:
126 (May 2009)
Paper Number:
7709
Publication Date:
May 1, 2009Import into BibTeX
Subject:
Audio for Telecommunications
Permalink:
http://www.aes.org/e-lib/browse.cfm?elib=14905