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".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
본 논문에서는 주파수 영역 잡음 평균화 기능을 갖춘 스테레오 바람 잡음 억제 장치를 제안합니다. 확산된 바람 소음에 대한 방향성 이득은 대상 신호를 차단하는 채널 간 위상차를 기반으로 하는 널 빔포머를 사용하여 프레임별로 추정됩니다. 채널 간 바람 잡음 불균형에 대처하기 위해 바람 잡음 이득 추정값에 입력 잡음 신호를 곱하여 채널 종속 바람 잡음 추정값을 생성하는 것이 일반적입니다. 목표 신호 우세 또는 부수적으로 동일한 바람 소음 위상에 의한 채널 간 위상 일치는 과소평가로 이어지며 주파수에 따른 채널 종속 바람 소음 추정치를 평균화하여 상쇄됩니다. 평가 결과, 제안된 바람소리 억제장치의 평균 PESQ 점수는 2.1에 달하며, 이는 평균화를 하지 않은 바람소리 억제장치에 비해 0.2 더 높고, 기존 모노럴 소음 억제장치에 비해 0.3 더 높은 것으로 통계적으로 유의미한 차이를 보였다.
Masanori KATO
NEC Corporation
Akihiko SUGIYAMA
NEC Corporation,Tokyo Metropolitan University
Tatsuya KOMATSU
NEC Corporation
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부
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
부
@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},}
부
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 -