面向高混响环境的欠定卷积盲源分离算法

doi:10.11959/j.issn.1000-436x.2023027

Abstract

Abstract:

To separate the underdetermined convolutive mixture signals in the high reverberation environment, a novel algorithm of underdetermined convolutive blind source separation was proposed.Aiming at the influence of high reverberation environment, a global impulse response network was designed to weaken reverberation echo, improving signal quality.A new mathematical model of time-frequency mixing signals was established based on the global impulse response network.The global impulse response matrix which shortened the length of the traditional impulse response, reduced the approximation error of model transformation caused by high reverberation.The real-time update learning rules of model parameters were designed based on the theory of nonnegative matrix factorization, and the source signal separation problem was converted into the model parameter optimization problem, achieving blind source separation of mixing signals.Experimental results show that the proposed algorithm can effectively realize the blind source separation of Chinese and English speech and music signals, and the comparision with existing popular algorithms verified the superiority of the proposed algorithm.

Key words: blind source separation, underdetermined convolutive mixture, high reverberation environment, global impulse response network, nonnegative matrix factorization

CLC Number:

TN911.23

Yuan XIE, Tao1 ZOU, Weijun SUN, Shengli XIE. Algorithm of underdetermined convolutive blind source separation for high reverberation environment[J]. Journal on Communications, 2023, 44(2): 82-93.

Figures/Tables 12

References ［27］

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数据集	源信号	频率/kHz	时长/s
英文语音1	dev1_female3_src_1	16	10
英文语音2	dev1_female3_src_2	16	10
英文语音3	dev1_female3_src_3	16	10

数据集	源信号	频率/kHz	时长/s
音乐信号1	dev2_another_dreamer-the_ones_we_love_snip_69_94_guitar	44.1	25
音乐信号2	dev2_another_dreamer-the_ones_we_love_snip_69_94_vocals	44.1	25
音乐信号3	dev2_another_dreamer-the_ones_we_love_snip_69_94_drums	44.1	25

数据集	源信号	频率/kHz	时长/s
中文语音1	IC0936W0131	16	5
中文语音2	IC0936W0134	16	5
中文语音3	IC0936W0137	16	5

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Algorithm of underdetermined convolutive blind source separation for high reverberation environment

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