NDLI: Speech enhancement based on mEMD-VMD method

Content Provider	IET Digital Library
Author	Upadhyay, A. Pachori, R. B.
Abstract	A novel and effective speech enhancement method is proposed for suppressing the white noise as well as non-stationary acoustic noises. The proposed method employs the combination of variational mode decomposition (VMD) and empirical mode decomposition (EMD) methods. In this method, first EMD is used to decompose the noisy speech signal into intrinsic mode functions (IMFs). Further, the VMD is applied on summation of selected IMFs. The main contribution of the proposed method is the selection of IMFs based on Hurst exponent and further applying steps of VMD method. The proposed modified EMD-VMD (mEMD-VMD) method is suitable to reduce the low-frequency noise as well as high-frequency noise. The proposed method gives the better results in terms of speech quality and composite measures. The proposed study is performed on eight speech signals under additive white Gaussian noise, street noise, babble noise, and airport noise taken from NOIZEUS database.
Starting Page	502
Ending Page	504
Page Count	3
ISSN	00135194
Volume Number	53
e-ISSN	1350911X
Issue Number	Issue 7, Mar (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/53/7
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2016.4439
Journal	Electronics Letters
Publisher Date	2017-03-02
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Acoustic Noise Acoustic Noise, Its Effects And Control Additive White Gaussian Noise Channel Airport Noise AWGN Babble Noise Composite Measures Empirical Mode Decomposition High-frequency Noise Reduction Hurst Exponent IMF Intrinsic Mode Function Low-frequency Noise Reduction MEMD-VMD Method Modified EMD-VMD Method Noisy Speech Signal Decomposition NOIZEUS Database Nonstationary Acoustic Noises Signal Denoising Speech And Audio Signal Processing Speech Enhancement Speech Enhancement Method Speech Processing Technique Speech Quality Street Noise Variational Mode Decomposition Variational Technique White Noise Suppression
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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