The DSP Low SNR Speech Enhancement System Based on Two-Level Wiener Filtering

Gang Niu; Wen Bin Cao; Guo Shun Chen; Qian Kun Yang; Ya Jun Zhang

doi:10.4028/www.scientific.net/AMM.433-435.389

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 433-435The DSP Low SNR Speech Enhancement System Based on...

The DSP Low SNR Speech Enhancement System Based on Two-Level Wiener Filtering

Abstract:

In the field of military communications, the SNR of speech signal is low because of the additive noise,. The two-level Wiener filter is adopted to analysis the noise characteristics. The DSP system architecture solutions are given out in this paper.The algorithms of the PSD mean module, Mel scale filter bank module, voice activity detection module and gain control module are introduced in detail. Finally, the application results are given out, which indicate that two Wiener filter can achieve better results, in short stationary noise environments when face the low SNR.

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Periodical:

Applied Mechanics and Materials (Volumes 433-435)

Pages:

389-394

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.433-435.389

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Online since:

October 2013

Authors:

Gang Niu, Wen Bin Cao, Guo Shun Chen, Qian Kun Yang, Ya Jun Zhang

Keywords:

Additive Noise, DSP, Low SNR, Short Stationary Noise, Two-Level Wiener Filteriing

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References

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