舰船噪声环境下改进语音信号增强算法

doi:10.3969/j.issn.1001-2400.2016.05.024

Abstract

Abstract:

Spectral subtraction is wildly used in speech enhancement. But it is not always available in the ship working environment because of the fact that it is hard to discriminate the speech duration with the ship noise. So, in this paper, we propose a new approach, which first computes the frequency spectrum similarity and then discriminates the signal segments into speech or noise roughly. And then by the frame shifting method, we achieve a high discrimination precision. Finally, the improved algorithm is benchmarked on a large measured data and experimental results show that the proposed method can be used in various ship-radiated noise environments. The discrimination accuracy is 98％ for ship-radiated noise and 96％ for speech.

Key words: speech enhancement, spectral subtraction, spectrum similarity, speech detection, frame shifting

LI Dawei;YANG Rijie;HAN Jianhui. Study of speech enhancement in the background of ship-radiated noise[J].Journal of Xidian University, 2016, 43(5): 133-138.

References

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Study of speech enhancement in the background of ship-radiated noise

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