NDLI: Improved concept-to-speech generation in a dialogue system on road guidance

Content Provider	IEEE Xplore Digital Library
Author	Yagi, Y. Hirose, K. Takada, S. Minematsu, N.
Copyright Year	2005
Description	Author affiliation: Graduate Sch. of Eng., Tokyo Univ. (Yagi, Y.)
Abstract	Although in most spoken dialogue systems, text-to-speech conversion devices are used for reply speech generation. However, use of such devices makes it difficult to well reflect higher-level linguistic (and para-/non- linguistic) information obtainable during sentence generation process on reply speech. This situation degrades the reply speech quality mainly from the aspect of prosodic features. A method is necessary to directly converting content of reply into speech. This method, known as concept-to-speech conversion, was realized for the reply speech generation in our spoken dialogue system on road guidance. It is an improved version of our formerly developed one for an agent dialogue system. Reply sentence generation was conducted by pasting words and/or phrases at tag positions of a sentence frame, which was prepared in a tag-LISP form. In order to realize the concept-to-speech conversion, syntactic structure of phrases in user's inputs is kept and is utilized for the sentence generation. Several improvements, such as prosodic phrase boundary positioning using probability of word sequences, are also added to prosodic control in speech synthesis. In the spoken dialogue system, a user was guided to reach a place marked on a map through conversation. Several schemes on dialogue management were implemented to solve the problems caused due to the imperfect information on the roads given to the user and the system. A trial use of the system showed that a smooth conversation between the user and the system was possible. The result clearly indicated a better prosodic control for the newly developed method as compared to the original method
Starting Page	8
Ending Page	436
File Size	255092
Page Count	429
File Format	PDF
ISBN	0769523781
DOI	10.1109/CW.2005.53
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-11-23
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Speech synthesis Roads Information science Speech processing Degradation Communication system control Humans Control systems Computer displays System testing
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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