Stressed speech recognition using a warped frequency scale

IEICE Electronics Express

D. Gharavian¹  S. M. Ahadi¹ 

[1] Electrical Engineering Department, Amirkabir University of Technology

关键词: prosody;    stress;    speech recognition;    frequency warping;    formants;   

DOI  :  10.1587/elex.5.187

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(9)Cited-By(2)The use of emotion-initiated gestures in human speech communication results in the improvement of speech understanding. However, this is a source of difficulty for automatic speech recognizers. In this paper, using the orderly changes found in the second formant, due to stress, a warping function is introduced that can be applied to the mel frequency scale during the calculation of MFCC parameters. We show that this approach leads to improvements in the stressed speech recognition results. Furthermore, using the second formant frequency as an extra element of the feature vector leads to further improvements in the speech recognizer performance.

【 授权许可】

Unknown