Speech Enhancement using Bolls Spectral Subtraction Method

Speech Enhancement using Bolls Spectral Subtraction Method

Prof. S.China Venkateswarlu

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A.Subba Rami Reddy

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K.Satya Prasad

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Jawaharlal Nehru Technological University, Hyderabad

Speech Enhancement using Bolls Spectral Subtraction Method

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Abstract

This paper investigates the effect of Gaussian window frequency response Side lobe Attenuation on the improvement of Speech quality in terms of six objective quality measures. In Speech Enhancement process, signal corrupted by noise is segmented into frames and each segment is Windowed using Gaussian window with variation in the side lobe attenuation parameter “α”. The Windowed Speech segments are applied to the Boll’s Spectral Subtraction Speech Enhancement algorithm and the Enhanced Speech signal is reconstructed in its time domain. The focus is to investigate the effect of Gaussian window frequency response side lobe level on the Boll’s Spectral Subtraction Speech enhancement. For various side lobe attenuations of the Gaussian window frequency response, speech quality objective measures have been computed. From this study, it is observed that the Side lobe Attenuation parameter “α” plays an important role on the Speech enhancement process in terms of six objective quality measures. The results are compared with the measures of Hamming window and an optimum side lobe attenuation parameter value for the Gaussian window is proposed for better speech quality.

References

24 Cites in Article

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Prof. S.China Venkateswarlu. 2014. \u201cSpeech Enhancement using Bolls Spectral Subtraction Method\u201d. Global Journal of Research in Engineering - F: Electrical & Electronic GJRE-F Volume 14 (GJRE Volume 14 Issue F6).

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GJRE Volume 14 Issue F6

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Journal Specifications

Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

Keywords

boll’s spectral subtraction DFT gaussian window objective measures side lobe attenuation speech enhancement

Submission ReceivedDecember 13, 2013
Peer Review Double Blind
Handling Editor
Accepted January 5, 2014
Published January 15, 2014

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v1.2

Issue date

August 16, 2014

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Article Matrices

Total Score: 103

Country: India

Subject: Global Journal of Research in Engineering - F: Electrical & Electronic

Authors: S.China Venkateswarlu, A.Subba Rami Reddy, K.Satya Prasad (PhD/Dr. count: 0)

View Count (all-time): 229

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Publish Date: 2014 08, Sat

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Total Views: 4619

Total Downloads: 2352

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