The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Cet article propose un suppresseur stéréo de bruit de vent avec moyenne du bruit dans le domaine fréquentiel. Un gain directionnel pour le bruit de vent diffus est estimé image par image à l'aide d'un formateur de faisceau nul basé sur une différence de phase intercanal qui bloque le signal cible. L'estimation du gain de bruit du vent est généralement multipliée par le signal bruyant d'entrée pour générer des estimations du bruit du vent dépendant du canal afin de faire face au déséquilibre du bruit du vent entre les canaux. L'accord de phase intercanal par dominance du signal cible ou par une phase de bruit de vent égale, qui conduit à une sous-estimation, est compensé par la moyenne des estimations de bruit de vent dépendant du canal le long de la fréquence. Les résultats de l'évaluation montrent que le score PESQ moyen obtenu par le suppresseur de bruit de vent proposé atteint 2.1, ce qui est 0.2 supérieur à celui obtenu par le suppresseur de bruit de vent sans moyenne et 0.3 supérieur à celui obtenu par un suppresseur de bruit monaural conventionnel avec une différence statistiquement significative.
Masanori KATO
NEC Corporation
Akihiko SUGIYAMA
NEC Corporation,Tokyo Metropolitan University
Tatsuya KOMATSU
NEC Corporation
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Masanori KATO, Akihiko SUGIYAMA, Tatsuya KOMATSU, "A Stereo Wind-Noise Suppressor with Null Beamforming and Frequency-Domain Noise Averaging" in IEICE TRANSACTIONS on Fundamentals,
vol. E101-A, no. 10, pp. 1631-1637, October 2018, doi: 10.1587/transfun.E101.A.1631.
Abstract: This paper proposes a stereo wind-noise suppressor with frequency-domain noise averaging. A directional gain for diffuse wind noise is estimated frame by frame using a null beamformer based on interchannel phase difference which blocks the target signal. The wind-noise gain estimate is commonly multiplied by the input noisy signal to generate channel dependent wind noise estimates in order to cope with interchannel wind-noise imbalance. Interchannel phase agreement by target signal dominance or incidentally equal wind-noise phase, which leads to underestimation, is offset by averaging channel dependent wind-noise estimates along frequency. Evaluation results show that the mean PESQ score by the proposed wind-noise suppressor reaches 2.1 which is 0.2 higher than that by the wind-noise suppressor without averaging and 0.3 higher than that by a conventional monaural-noise suppressor with a statistically significant difference.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E101.A.1631/_p
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@ARTICLE{e101-a_10_1631,
author={Masanori KATO, Akihiko SUGIYAMA, Tatsuya KOMATSU, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Stereo Wind-Noise Suppressor with Null Beamforming and Frequency-Domain Noise Averaging},
year={2018},
volume={E101-A},
number={10},
pages={1631-1637},
abstract={This paper proposes a stereo wind-noise suppressor with frequency-domain noise averaging. A directional gain for diffuse wind noise is estimated frame by frame using a null beamformer based on interchannel phase difference which blocks the target signal. The wind-noise gain estimate is commonly multiplied by the input noisy signal to generate channel dependent wind noise estimates in order to cope with interchannel wind-noise imbalance. Interchannel phase agreement by target signal dominance or incidentally equal wind-noise phase, which leads to underestimation, is offset by averaging channel dependent wind-noise estimates along frequency. Evaluation results show that the mean PESQ score by the proposed wind-noise suppressor reaches 2.1 which is 0.2 higher than that by the wind-noise suppressor without averaging and 0.3 higher than that by a conventional monaural-noise suppressor with a statistically significant difference.},
keywords={},
doi={10.1587/transfun.E101.A.1631},
ISSN={1745-1337},
month={October},}
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TY - JOUR
TI - A Stereo Wind-Noise Suppressor with Null Beamforming and Frequency-Domain Noise Averaging
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1631
EP - 1637
AU - Masanori KATO
AU - Akihiko SUGIYAMA
AU - Tatsuya KOMATSU
PY - 2018
DO - 10.1587/transfun.E101.A.1631
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E101-A
IS - 10
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - October 2018
AB - This paper proposes a stereo wind-noise suppressor with frequency-domain noise averaging. A directional gain for diffuse wind noise is estimated frame by frame using a null beamformer based on interchannel phase difference which blocks the target signal. The wind-noise gain estimate is commonly multiplied by the input noisy signal to generate channel dependent wind noise estimates in order to cope with interchannel wind-noise imbalance. Interchannel phase agreement by target signal dominance or incidentally equal wind-noise phase, which leads to underestimation, is offset by averaging channel dependent wind-noise estimates along frequency. Evaluation results show that the mean PESQ score by the proposed wind-noise suppressor reaches 2.1 which is 0.2 higher than that by the wind-noise suppressor without averaging and 0.3 higher than that by a conventional monaural-noise suppressor with a statistically significant difference.
ER -