An Attention-based Neural Network Approach for Single Channel Speech Enhancement

Xiang Hao, Changhao Shan, Yong Xu, Sining Sun, Lei Xie

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

49 Scopus citations

Abstract

This paper proposes an attention-based neural network approach for single channel speech enhancement. Our work is inspired by the recent success of attention models in sequence-to-sequence learning. It is intuitive to use attention mechanism in speech enhancement as humans are able to focus on the important speech components in an audio stream with high attention while perceiving the unimportant region (e.g., noise or interference) in low attention, and thus adjust the focal point over time. Specifically, taking noisy spectrum as input, our model is composed of an LSTM based encoder, an attention mechanism and a speech generator, resulting in enhanced spectrum. Experiments show that, as compared with OM-LSA and the LSTM baseline, the proposed attention approach can consistently achieve better performance in terms of speech quality (PESQ) and intelligibility (STOI). More promisingly, the attention-based approach has better generalization ability to unseen noise conditions.

Original languageEnglish
Title of host publication2019 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages6895-6899
Number of pages5
ISBN (Electronic)9781479981311
DOIs
StatePublished - May 2019
Event44th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019 - Brighton, United Kingdom
Duration: 12 May 201917 May 2019

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume2019-May
ISSN (Print)1520-6149

Conference

Conference44th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019
Country/TerritoryUnited Kingdom
CityBrighton
Period12/05/1917/05/19

Keywords

  • attention mechanism
  • neural networks
  • speech enhancement

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