DocumentCode
805270
Title
Blind separation of impulsive noise from corrupted audio signal
Author
Lau, W.H. ; Hui, F.L. ; Leung, S.H. ; Luk, A.
Author_Institution
Dept. of Electron. Eng., City Polytech. of Hong Kong, Kowloon, Hong Kong
Volume
32
Issue
3
fYear
1996
fDate
2/1/1996 12:00:00 AM
Firstpage
166
Lastpage
168
Abstract
The authors present a new method for separating the impulsive noise from a corrupted audio signal. It is shown that if the audio signal is assumed to be Gaussian distributed, the third-order cumulants of the impulsive noise can be separated, based upon the corrupted audio signal. The impulsive noise can then be reconstructed via the relationship between the bispectrum and the Fourier spectrum. Finally, the audio signal is restored by simply subtracting the reconstructed impulsive noise from the signal
Keywords
Gaussian distribution; acoustic noise; acoustic signal processing; audio signals; higher order statistics; signal restoration; Fourier spectrum; Gaussian distribution; bispectrum; blind separation; corrupted audio signal; impulsive noise; signal reconstruction; signal restoration; third-order cumulants;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19960139
Filename
490774
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