Publication Details

Advances in Acoustic Modeling for the Recognition of Czech

KOPECKÝ Jiří, GLEMBEK Ondřej and KARAFIÁT Martin. Advances in Acoustic Modeling for the Recognition of Czech. In: Proc. 11th International Conference on Text, Speech and Dialogue. Lecture Notes in Computer Science, vol. 5246. Berlin: Springer Verlag, 2008, pp. 357-363. ISBN 978-3-540-87390-7.
Czech title
Pokrok v akustickém modelování pro rozpoznávání češtiny
Type
conference paper
Language
english
Authors
Kopecký Jiří, Ing. (DCGM FIT BUT)
Glembek Ondřej, Ing., Ph.D. (DCGM FIT BUT)
Karafiát Martin, Ing., Ph.D. (DCGM FIT BUT)
URL
Keywords

Automatic Speech Recognition, LVCSR system, acoustic modeling, HLDA, VTLN, CMLLR, lectures recognition

Abstract

The paper is on Advances in Acoustic Modeling for the Recognition of Czech

Annotation

This paper presents recent advances in Automatic Speech Recognition for the Czech Language. Improvements were achieved both in acoustic and language modeling. We mainly aim on the acoustic part of the issue. The results are presented in two contexts, the lecture recognition and SpeeCon+Temic test set. The paper shows the impact of using advanced modeling techniques such as HLDA, VTLN and CMLLR. On the lecture test set, we show that training acoustic models using word networks together with the pronunciation dictionary gives about 4-5% absolute performance improvement as opposed to using direct phonetic transcriptions. An effect of incorporating the "schwa" phoneme in the training phase shows a slight improvement.

Published
2008
Pages
357-363
Proceedings
Proc. 11th International Conference on Text, Speech and Dialogue
Series
Lecture Notes in Computer Science
Volume
5246
Conference
11th International Conference on Text, Speech and Dialogue, Brno, CZ
ISBN
978-3-540-87390-7
Publisher
Springer Verlag
Place
Berlin, DE
BibTeX 
@INPROCEEDINGS{FITPUB8724,
   author = "Ji\v{r}\'{i} Kopeck\'{y} and Ond\v{r}ej Glembek and Martin Karafi\'{a}t",
   title = "Advances in Acoustic Modeling for the Recognition of Czech",
   pages = "357--363",
   booktitle = "Proc. 11th International Conference on Text, Speech and Dialogue",
   series = "Lecture Notes in Computer Science",
   volume = 5246,
   year = 2008,
   location = "Berlin, DE",
   publisher = "Springer Verlag",
   ISBN = "978-3-540-87390-7",
   language = "english",
   url = "https://www.fit.vut.cz/research/publication/8724"
}
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