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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/7028
Title: A Wavelet Packet Based Approach for Speech Enhancement Using Modulation Channel Selection
Authors: Singh S.
Tripathy, Manoj
Anand, Radhey Shyam
Published in: Wireless Personal Communications
Abstract: In this paper, a wavelet packet based speech enhancement system is proposed for noise reduction. In the proposed method, a modulation channel selection is used as a thresholding function for de-noising. Three levels 8 sub-band wavelet packet decomposition is used and all sub-bands are given to threshold function for noise suppression. This novel modulation channel selection is based on calculation of true signal-to-noise ratio (SNR) by thresholding with local SNR of ?7 dB. The presented method is used for noise suppression in single-channel speech patterns. Objective and subjective parameters are used for performance evaluation of this method. The performance of the proposed method is also compared with spectral subtraction, mband, mmse, test-psc, idbm, klt, and pklt. The proposed method give maximum intelligibility and quality in compared to other given methods. MATLAB 7.14 is used for simulation. © 2017, Springer Science+Business Media New York.
Citation: Wireless Personal Communications (2017), 95(4): 4441-4456
URI: https://doi.org/10.1007/s11277-017-4094-6
http://repository.iitr.ac.in/handle/123456789/7028
Issue Date: 2017
Publisher: Springer New York LLC
Keywords: Speech enhancement
Subjective and objective parameters
Wavelet packet
ISSN: 9296212
Author Scopus IDs: 24757305000
16205441100
56363331000
Author Affiliations: Singh, S., Department of Electrical & Electronics Engineering, SRMS CET, Bareilly, India, Department of Electrical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
Tripathy, M., Department of Electrical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
Anand, R.S., Department of Electrical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
Corresponding Author: Singh, S.; Department of Electrical & Electronics Engineering, SRMS CETIndia; email: sachinsingh.iitr@gmail.com
Appears in Collections:Journal Publications [EE]

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