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Evaluation of interface and in-car speech - many undesirable utterances and sever noisy speech on car navigation application -

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6 Author(s)
Nobuo Hataoka ; Department of Electronics and Intelligent Systems, Tohoku Institute of Technology, 35-1 Yagiyama Kasumi-cho, Taihaku-ku, Sendai 982-8577, JAPAN ; Manabu Araki ; Takashi Matsuda ; Masayuki Takahashi
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In this paper, we report two evaluation results of ASR (automatic speech recognition) for a car navigation system, first interface evaluation results using a commercial product and second ASR module evaluation results for noisy in-car speech. In the first evaluation, we report many undesirable OOV (Out Of Vocabulary) utterances which make the interface worse. To overcome this problem, we propose a sophisticated interface which can handle OOV problems. Next, we carried out ASR module evaluation for the noisy in-car real speech gathered using driving car. We used free Continuous Speech Recognition (CSR) software Julius/Julian as a speech decoder.

Published in:

Multimedia Signal Processing, 2008 IEEE 10th Workshop on

Date of Conference:

8-10 Oct. 2008