ADAPTIVE WAVELET THRESHOLDING FOR DENOISING SPEECH SIGNALS

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SHEYKH ALISHAHI F.; ABOU TALEBI H.R.; TABAN M.R.

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Paper Information

Journal: NASHRIYYAH -I MUHANDISI -I BARQ VA MUHANDISI -I KAMPYUTAR -I IRAN, A- MUHANDISI -I BARQ Year:2009 | Volume:7 | Issue:1 Page(s): 58-66

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Information Journal Paper

Title

ADAPTIVE WAVELET THRESHOLDING FOR DENOISING SPEECH SIGNALS

Author(s)

SHEYKH ALISHAHI F. | ABOU TALEBI H.R. | TABAN M.R. | Issue Writer Certificate

Keywords

SPEECH ENHANCEMENTQ2

WAVELET TRANSFORMQ2

ADAPTIVE THRESHOLDINGQ3

Abstract

This paper addresses the problem of SPEECH ENHANCEMENT in wavelet domain. After decomposition of noisy signal into wavelet sub-bands, an ADAPTIVE THRESHOLDING process is applied on wavelet coefficients. In the proposed technique, small threshold value and hard thrsholding function are used in sub-bands with high speech energy; vice versa, in sub-bands with low speech energy, large threshold value and soft thresholding function are employed. For other sub-bands (between above two extreme cases for speech energy), we use an ADAPTIVE THRESHOLDING function that is actually between soft- and hard-thresholding functions. The threshold value and thresholding function are determined by a parameter related to the ratio of speech and noise powers in each sub-band. Our extensive experiments show the superiority of proposed method in removing the background noise and reduction of speech distortion. It was also shown that both wavelet tree structure and wavelet type affect on the performance of speech de-noising system.

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APA: Copy

SHEYKH ALISHAHI, F., ABOU TALEBI, H.R., & TABAN, M.R.. (2009). ADAPTIVE WAVELET THRESHOLDING FOR DENOISING SPEECH SIGNALS. NASHRIYYAH-I MUHANDESI-I BARQ VA MUHANDESI-I KAMPYUTAR-I IRAN (PERSIAN), 7(1), 58-66. SID. https://sid.ir/paper/53692/en

Vancouver: Copy

SHEYKH ALISHAHI F., ABOU TALEBI H.R., TABAN M.R.. ADAPTIVE WAVELET THRESHOLDING FOR DENOISING SPEECH SIGNALS. NASHRIYYAH-I MUHANDESI-I BARQ VA MUHANDESI-I KAMPYUTAR-I IRAN (PERSIAN)[Internet]. 2009;7(1):58-66. Available from: https://sid.ir/paper/53692/en

IEEE: Copy

F. SHEYKH ALISHAHI, H.R. ABOU TALEBI, and M.R. TABAN, “ADAPTIVE WAVELET THRESHOLDING FOR DENOISING SPEECH SIGNALS,” NASHRIYYAH-I MUHANDESI-I BARQ VA MUHANDESI-I KAMPYUTAR-I IRAN (PERSIAN), vol. 7, no. 1, pp. 58–66, 2009, [Online]. Available: https://sid.ir/paper/53692/en

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