Speech Enhancement Control Design Algorithm for Dual-Microphone Systems Using β-NMF in a Complex Environment. (9th September 2018)

• Record Type: Journal Article
• Authors: Wang, Dong-xia; Jiang, Mao-song; Niu, Fang-lin; Cao, Yu-dong; Zhou, Cheng-xu
• Other Names: Zhong Junpei Academic Editor.
• Is Part Of: Complexity. Volume 2018(2018)
• Publication Date: 2018-09-09
• Subjects: Chaotic behavior in systems -- Periodicals; Complexity (Philosophy) -- Periodicals; 003
• DOI: 10.1155/2018/6153451
• Languages: English
• ISSNs: 1076-2787

Abstract

Abstract : Single-microphone speech enhancement algorithms by using nonnegative matrix factorization can only utilize the temporal and spectral diversity of the received signal, making the performance of the noise suppression degrade rapidly in a complex environment. Microphone arrays have spatial selection and high signal gain, so it applies to the adverse noise conditions. In this paper, we present a new algorithm for speech enhancement based on two microphones with nonnegative matrix factorization. The interchannel characteristic of each nonnegative matrix factorization basis can be modeled by the adopted method, such as the amplitude ratios and the phase differences between channels. The results of the experiment confirm that the proposed algorithm is superior to other dual-microphone speech enhancement algorithms.