NDLI: A voice-activated telephone exchange system and its field trial

Content Provider	IEEE Xplore Digital Library
Author	Yamamoto, S. Takeda, K. Inoue, N. Kuroiwa, S. Naitoh, M.
Copyright Year	1994
Description	Author affiliation: KDD R&D Labs., Saitama, Japan (Yamamoto, S.; Takeda, K.; Inoue, N.; Kuroiwa, S.; Naitoh, M.)
Abstract	Speaker-independent speech recognition systems that can accept telephone quality speech may open opportunities for introducing new user-friendly services over the public switched telephone network (PSTN). The authors are currently engaged in a project to introduce an automatic speech recognizer over PSTN. They have developed a voice-activated telephone exchange system by combining a continuous speech recognizer and a private branch exchange system (PBX), and conducted field trials. The system has been installed in the R&D laboratories for daily use since June 1993, in order to investigate its performance in a real environment and collect man-machine dialogues. More than 5,000 man-machine dialogues have been collected, and incorrect recognitions have been analyzed and categorized into three categories such as (1) incorrect detection of speech, (2) out-of-vocabulary responses, (3) incorrect recognition with inadequate hidden Markov models of speech and noise. The authors have improved system performance by mainly attacking the issues (1) and (3). They have just developed a new version of the system, using the improved scheme obtained by analyzing the collected speech data. In order to collect more man-machine dialogues, they are planning to carry out the second phase field trial in which the new system will be installed in branch offices.
Starting Page	21
Ending Page	26
File Size	471282
Page Count	6
File Format	PDF
ISBN	0780320743
DOI	10.1109/IVTTA.1994.341551
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-09-26
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Telephony Speech recognition Automatic speech recognition Man machine systems Speech analysis Laboratories Research and development Hidden Markov models Speech enhancement System performance
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Voice-activated home banking system and its field trial

Comparison of discrete and continuous HMMs in a CSR task over the telephone

Towards improving ASR robustness for PSN & GSM telephone applications

Performance analysis of hybrid robust automatic speech recognition system

Dialogos: a robust system for human-machine spoken dialogue on the telephone

A user-configurable system for voice label recognition

A new speech enhancement: speech stream segregation

Mandarin telephone speech recognition for automatic telephone number directory service

Performance evaluation of SmarTspelL/sup R/: a continuously spelled name recognizer over the telephone

A voice-activated telephone exchange system and its field trial

Similar Documents

Voice-activated home banking system and its field trial

Comparison of discrete and continuous HMMs in a CSR task over the telephone

Towards improving ASR robustness for PSN & GSM telephone applications

Performance analysis of hybrid robust automatic speech recognition system

Dialogos: a robust system for human-machine spoken dialogue on the telephone

A user-configurable system for voice label recognition

A new speech enhancement: speech stream segregation

Mandarin telephone speech recognition for automatic telephone number directory service

Performance evaluation of SmarTspelL/sup R/: a continuously spelled name recognizer over the telephone

A voice-activated telephone exchange system and its field trial