DocumentCode :
2792217
Title :
Distortions in speech enhancement due to block processing
Author :
Marin-Hurtado, J.I. ; Anderson, D.V.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fYear :
2010
fDate :
14-19 March 2010
Firstpage :
4774
Lastpage :
4777
Abstract :
In most speech enhancement algorithms, a frequency response is computed per each block, and a multiplication in the frequency domain is used to apply this frequency response. Typically, in these algorithms, the updating procedure cannot ensure the fulfillment of the condition to perform a linear convolution instead of a circular convolution. As a result, artifacts and distortions may be present. Standard methods to deal with these distortions use overlapping and windowing. This work presents a detailed analysis of these distortions and proposes a new method to perform a artifact-free and distortion-free convolution in the FFT domain.
Keywords :
convolution; fast Fourier transforms; frequency response; frequency-domain analysis; speech enhancement; FFT domain; block processing; circular convolution; distortion-free convolution; distortions; frequency domain; frequency response; linear convolution; speech enhancement algorithm; Adaptive filters; Convolution; Frequency domain analysis; Frequency estimation; Frequency response; Marine technology; Nonlinear distortion; Performance analysis; Speech enhancement; Time domain analysis; blocking artifacts; fast convolution; speech enhancement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on
Conference_Location :
Dallas, TX
ISSN :
1520-6149
Print_ISBN :
978-1-4244-4295-9
Electronic_ISBN :
1520-6149
Type :
conf
DOI :
10.1109/ICASSP.2010.5495161
Filename :
5495161
Link To Document :
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