Paper Info
Title
Improving text-independent phonetic segmentation based on the Microcanonical Multiscale Formalism
Abstract
In an earlier work, we proposed a novel phonetic segmentation method based on speech analysis under the Microcanonical Multiscale Formalism (MMF). The latter relies on the computation of local geometrical parameters, singularity exponents (SE). We showed that SE convey valuable information about the local dynamics of speech that can readily and simply used to detect phoneme boundaries. By performing error analysis of our original algorithm, in this paper we propose a 2-steps technique which better exploits SE to improve the segmentation accuracy. In the first step, we detect the boundaries of the original signal and of a low-pass filtred version, and we consider the union of all detected boundaries as candidates. In the second step, we use a hypothesis test over the local SE distribution of the original signal to select the final boundaries. We carry out a detailed evaluation and comparison over the full training set of the TIMIT database which could be useful to other researchers for comparison purposes. The results show that the new algorithm not only outperforms the original one, but also is significantly much more accurate than state-of-the-art ones.
Year
DOI
Venue
2011
10.1109/ICASSP.2011.5947350
Acoustics, Speech and Signal Processing
Keywords
DocType
ISSN
error analysis,low-pass filters,speech processing,2-step technique,MMF,TIMIT database,error analysis,local SE distribution,local geometrical parameters,low-pass filtred version,microcanonical multiscale formalism,speech analysis,text-independent phonetic segmentation,complex signals and systems,multiscale signal processing,non-linear speech processing,phonetic segmentation
Conference
1520-6149 E-ISBN : 978-1-4577-0537-3
ISBN
Citations 
PageRank 
978-1-4577-0537-3
10
0.60
References 
Authors
7
4
Name
Order
Citations
PageRank
Vahid Khanagha1413.97
Khalid Daoudi214523.68
Oriol Pont3545.95
Hussein M. Yahia48716.06