Speech recognition experiments with audiobooks

Tóth László and Tarján Balázs and Sárosi Gellért and Mihajlik Péter: Speech recognition experiments with audiobooks. In: Acta cybernetica, (19) 4. pp. 695-713. (2010)

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Under real-life conditions several factors may be present that make the automatic recognition of speech difficult. The most obvious examples are background noise, peculiarities of the speaker's voice, sloppy articulation and strong emotional load. These all pose difficult problems for robust speech recognition, but it is not exactly clear how much each contributes to the difficulty of the task. In this paper we examine the abilities of our best recognition technologies under near-ideal conditions. The optimal conditions will be simulated by working with the sound material of an audiobook, in which most of the disturbing factors mentioned above are absent. Firstly pure phone recognition experiments will be performed, where neural net-based technologies will also be tried as well as the conventional Hidden Markov Models. Then we move on to large vocabulary recognition, where morphbased language models are applied to improve the performance of the standard word-based technology. The tests clearly justify our assertion that audiobooks pose a much easier recognition task than real-life databases. In both types of tasks we report the lowest error rates we have achieved so far in Hungarian continuous speech recognition.

Item Type: Article
Journal or Publication Title: Acta cybernetica
Date: 2010
Volume: 19
Number: 4
ISSN: 0324-721X
Page Range: pp. 695-713
Language: English
Place of Publication: Szeged
Event Title: Conference on Hungarian Computational Linguistics (7.) (2010) (Szeged)
Related URLs: http://acta.bibl.u-szeged.hu/38530/
Uncontrolled Keywords: Számítástechnika, Nyelvészet - számítógép alkalmazása
Additional Information: Bibliogr.: p. 711-713. ; összefoglalás angol nyelven
Subjects: 01. Natural sciences
01. Natural sciences > 01.02. Computer and information sciences
06. Humanities
06. Humanities > 06.02. Languages and Literature
Date Deposited: 2016. Oct. 15. 12:24
Last Modified: 2022. Jun. 17. 11:19
URI: http://acta.bibl.u-szeged.hu/id/eprint/12889

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