Paper Title:
HMM-Based Speaker Emotional Recognition Technology for Speech Signal
  Abstract

In emotion classification of speech signals, the popular features employed are statistics of fundamental frequency, energy contour, duration of silence and voice quality. However, the performance of systems employing these features degrades substantially when more than two categories of emotion are to be classified. In this paper, a text independent method of emotion classification of speech is proposed. The proposed method makes use of short time log frequency power coefficients(LFPC) to represent the speech signals and a discrete Hidden Markov Model (HMM) as the classifier. The category labels used are, the archetypal emotions of anger, joy, sadness and neutral. Results show that the proposed system yields an average accuracy of 82.55%and the best accuracy of 94.4% in the classification of 4 emotions. Results also reveal that LFPC is a better choice as feature parameters for emotion classification than the traditional feature parameters.

  Info
Periodical
Advanced Materials Research (Volumes 230-232)
Edited by
Ran Chen and Wenli Yao
Pages
261-265
DOI
10.4028/www.scientific.net/AMR.230-232.261
Citation
Y. Q. Qin, X. Y. Zhang, "HMM-Based Speaker Emotional Recognition Technology for Speech Signal", Advanced Materials Research, Vols. 230-232, pp. 261-265, 2011
Online since
May 2011
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Price
$32.00
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