Speech Enhancement Using a Square Microphone Array in the Presence of Directional and Diffuse Noise
Summary :
We propose a new speech enhancement method suitable for mobile devices used in the presence of various types of noise. In order to achieve high-performance speech recognition and auditory perception in mobile devices, various types of noise have to be removed under the constraints of a space-saving microphone arrangement and few computational resources. The proposed method can reduce both the directional noise and the diffuse noise under the abovementioned constraints for mobile devices by employing a square microphone array and conducting low-computational-cost processing that consists of multiple null beamforming, minimum power channel selection, and Wiener filtering. The effectiveness of the proposed method is experimentally verified in terms of speech recognition accuracy and speech quality when both the directional noise and the diffuse noise are observed simultaneously; this method reduces the number of word errors and improves the log-spectral distances as compared to conventional methods.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E93-A No.5 pp.926-935
- Publication Date
- 2010/05/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1587/transfun.E93.A.926
- Type of Manuscript
- PAPER
- Category
- Speech and Hearing
Authors
Keyword
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Tetsuji OGAWA, Shintaro TAKADA, Kenzo AKAGIRI, Tetsunori KOBAYASHI, "Speech Enhancement Using a Square Microphone Array in the Presence of Directional and Diffuse Noise" in IEICE TRANSACTIONS on Fundamentals,
vol. E93-A, no. 5, pp. 926-935, May 2010, doi: 10.1587/transfun.E93.A.926.
Abstract: We propose a new speech enhancement method suitable for mobile devices used in the presence of various types of noise. In order to achieve high-performance speech recognition and auditory perception in mobile devices, various types of noise have to be removed under the constraints of a space-saving microphone arrangement and few computational resources. The proposed method can reduce both the directional noise and the diffuse noise under the abovementioned constraints for mobile devices by employing a square microphone array and conducting low-computational-cost processing that consists of multiple null beamforming, minimum power channel selection, and Wiener filtering. The effectiveness of the proposed method is experimentally verified in terms of speech recognition accuracy and speech quality when both the directional noise and the diffuse noise are observed simultaneously; this method reduces the number of word errors and improves the log-spectral distances as compared to conventional methods.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E93.A.926/_p
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@ARTICLE{e93-a_5_926,
author={Tetsuji OGAWA, Shintaro TAKADA, Kenzo AKAGIRI, Tetsunori KOBAYASHI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Speech Enhancement Using a Square Microphone Array in the Presence of Directional and Diffuse Noise},
year={2010},
volume={E93-A},
number={5},
pages={926-935},
abstract={We propose a new speech enhancement method suitable for mobile devices used in the presence of various types of noise. In order to achieve high-performance speech recognition and auditory perception in mobile devices, various types of noise have to be removed under the constraints of a space-saving microphone arrangement and few computational resources. The proposed method can reduce both the directional noise and the diffuse noise under the abovementioned constraints for mobile devices by employing a square microphone array and conducting low-computational-cost processing that consists of multiple null beamforming, minimum power channel selection, and Wiener filtering. The effectiveness of the proposed method is experimentally verified in terms of speech recognition accuracy and speech quality when both the directional noise and the diffuse noise are observed simultaneously; this method reduces the number of word errors and improves the log-spectral distances as compared to conventional methods.},
keywords={},
doi={10.1587/transfun.E93.A.926},
ISSN={1745-1337},
month={May},}
Copy
TY - JOUR
TI - Speech Enhancement Using a Square Microphone Array in the Presence of Directional and Diffuse Noise
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 926
EP - 935
AU - Tetsuji OGAWA
AU - Shintaro TAKADA
AU - Kenzo AKAGIRI
AU - Tetsunori KOBAYASHI
PY - 2010
DO - 10.1587/transfun.E93.A.926
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E93-A
IS - 5
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - May 2010
AB - We propose a new speech enhancement method suitable for mobile devices used in the presence of various types of noise. In order to achieve high-performance speech recognition and auditory perception in mobile devices, various types of noise have to be removed under the constraints of a space-saving microphone arrangement and few computational resources. The proposed method can reduce both the directional noise and the diffuse noise under the abovementioned constraints for mobile devices by employing a square microphone array and conducting low-computational-cost processing that consists of multiple null beamforming, minimum power channel selection, and Wiener filtering. The effectiveness of the proposed method is experimentally verified in terms of speech recognition accuracy and speech quality when both the directional noise and the diffuse noise are observed simultaneously; this method reduces the number of word errors and improves the log-spectral distances as compared to conventional methods.
ER -
English
