Improving Speech Enhancement by Integrating Inter-Channel and Band Features with Dual-branch Conformer

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Hauptverfasser: Li, Jizhen, Xu, Xinmeng, Tu, Weiping, Yang, Yuhong, Zhu, Rong
Format: Preprint
Veröffentlicht: 2024
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author Li, Jizhen
Xu, Xinmeng
Tu, Weiping
Yang, Yuhong
Zhu, Rong
author_facet Li, Jizhen
Xu, Xinmeng
Tu, Weiping
Yang, Yuhong
Zhu, Rong
contents Recent speech enhancement methods based on convolutional neural networks (CNNs) and transformer have been demonstrated to efficaciously capture time-frequency (T-F) information on spectrogram. However, the correlation of each channels of speech features is failed to explore. Theoretically, each channel map of speech features obtained by different convolution kernels contains information with different scales demonstrating strong correlations. To fill this gap, we propose a novel dual-branch architecture named channel-aware dual-branch conformer (CADB-Conformer), which effectively explores the long range time and frequency correlations among different channels, respectively, to extract channel relation aware time-frequency information. Ablation studies conducted on DNS-Challenge 2020 dataset demonstrate the importance of channel feature leveraging while showing the significance of channel relation aware T-F information for speech enhancement. Extensive experiments also show that the proposed model achieves superior performance than recent methods with an attractive computational costs.
format Preprint
id arxiv_https___arxiv_org_abs_2407_06524
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Improving Speech Enhancement by Integrating Inter-Channel and Band Features with Dual-branch Conformer
Li, Jizhen
Xu, Xinmeng
Tu, Weiping
Yang, Yuhong
Zhu, Rong
Sound
Multimedia
Audio and Speech Processing
Recent speech enhancement methods based on convolutional neural networks (CNNs) and transformer have been demonstrated to efficaciously capture time-frequency (T-F) information on spectrogram. However, the correlation of each channels of speech features is failed to explore. Theoretically, each channel map of speech features obtained by different convolution kernels contains information with different scales demonstrating strong correlations. To fill this gap, we propose a novel dual-branch architecture named channel-aware dual-branch conformer (CADB-Conformer), which effectively explores the long range time and frequency correlations among different channels, respectively, to extract channel relation aware time-frequency information. Ablation studies conducted on DNS-Challenge 2020 dataset demonstrate the importance of channel feature leveraging while showing the significance of channel relation aware T-F information for speech enhancement. Extensive experiments also show that the proposed model achieves superior performance than recent methods with an attractive computational costs.
title Improving Speech Enhancement by Integrating Inter-Channel and Band Features with Dual-branch Conformer
topic Sound
Multimedia
Audio and Speech Processing
url https://arxiv.org/abs/2407.06524