Investigation of Window Effects and the Accurate Estimation of Spectral Centroid

Venkata Krishna Rao M

Investigation of Window Effects and the Accurate Estimation of Spectral Centroid

Venkata Krishna Rao M * §

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§ Vidya Jyothi Institute of Technology

Investigation of Window Effects and the Accurate Estimation of Spectral Centroid

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Abstract

The spectral centroid is one of the useful low level features of a signal that was proposed for speech-music classification, speech recognition and musical instrument classification, and was also considered one of the lowlevel features to describe the audio content in MPEG-7 Content Description and Interface Standard. When the spectral centroid is computed from practical data, the estimate is different from the true expected theoretical value. Moreover, the behavior of the estimation error, when computed from finite length data i.e. from a short segment of signal would of high interest because most of the classification algorithms use dynamic features as the signals are nonstationary. In this paper, windowing effects on the spectral centroid estimation are investigated considering some well structured signals that appear frequently in speech and audio content. A novel algorithm is proposed to counter the window effects and better estimation of spectral centroid.

References

10 Cites in Article

Reference Format

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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

Venkata Krishna Rao M. 2015. "Investigation of Window Effects and the Accurate Estimation of Spectral Centroid". Global Journal of Research in Engineering - J: General Engineering GJRE-J Volume 15 (GJRE Volume 15 Issue J4).

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GJRE Volume 15 Issue J4

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Journal Specifications

Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

Keywords

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Classification

GJRE-J Classification FOR Code: 291899p

Submission ReceivedFebruary 10, 2015
Peer Review Double Blind
Handling Editor
Accepted March 1, 2015
Published March 15, 2015

Version of record

v1.2

Issue date

June 1, 2015

Language

English

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Article Matrices

Total Score: 101

Country: India

Subject: Global Journal of Research in Engineering

Authors: Venkata Krishna Rao M (PhD/Dr. count: 0)

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Publish Date: 2015 03, Sun

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