NDLI: Speech rate determination by vowel detection on the modulated energy envelope

Content Provider	IEEE Xplore Digital Library
Author	Dekens, T. Martens, H. Van Nuffelen, G. De Bodt, M. Verhelst, W.
Copyright Year	2014
Description	Author affiliation: Rehabilitation Centre for Commun. Disorders, Antwerp Univ. Hosp., Edegem, Belgium (Martens, H.; Van Nuffelen, G.; De Bodt, M.) \|\| Dept. ETRO, Vrije Univ. Brussel, Brussels, Belgium (Dekens, T.; Verhelst, W.)
Abstract	In this paper we propose a new algorithm to detect vowels in a speech utterance and infer the rate at which speech was produced. To achieve this we determine a smooth trajectory that corresponds to a high frequency energy envelope, modulated by the low frequency energy content. Peak picking performed on this trajectory gives an estimate of the number of vowels in the utterance. To dispose of falsely detected vowels, a peak pruning post-processing step is incorporated. Experimental results show that the proposed algorithm is more accurate than the two speech rate determination algorithms on which it was inspired.
Starting Page	1252
Ending Page	1256
File Size	567096
Page Count	5
File Format	PDF
ISBN	9780992862619
ISSN	20761465
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-01
Publisher Place	Portugal
Access Restriction	Subscribed
Rights Holder	EURASIP
Subject Keyword	Correlation Smoothing methods Frequency modulation Vowel detection Estimation Speech recognition Speech Trajectory Speech rate determination
Content Type	Text
Resource Type	Article

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Speech rate determination by vowel detection on the modulated energy envelope