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IEICE TRANSACTIONS on Information

Construction and Evaluation of a Large In-Car Speech Corpus

Kazuya TAKEDA, Hiroshi FUJIMURA, Katsunobu ITOU, Nobuo KAWAGUCHI, Shigeki MATSUBARA, Fumitada ITAKURA

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Summary :

In this paper, we discuss the construction of a large in-car spoken dialogue corpus and the result of its analysis. We have developed a system specially built into a Data Collection Vehicle (DCV) which supports the synchronous recording of multichannel audio data from 16 microphones that can be placed in flexible positions, multichannel video data from 3 cameras, and vehicle related data. Multimedia data has been collected for three sessions of spoken dialogue with different modes of navigation, during approximately a 60 minute drive by each of 800 subjects. We have characterized the collected dialogues across the three sessions. Some characteristics such as sentence complexity and SNR are found to differ significantly among the sessions. Linear regression analysis results also clarify the relative importance of various corpus characteristics.

Publication
IEICE TRANSACTIONS on Information Vol.E88-D No.3 pp.553-561
Publication Date
2005/03/01
Publicized
Online ISSN
DOI
10.1093/ietisy/e88-d.3.553
Type of Manuscript
Special Section PAPER (Special Section on Corpus-Based Speech Technologies)
Category
Speech Corpora and Related Topics

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