Robustness issues and solutions in speech recognition based telephony services

Author

Raman, Vijay ; Ramanujam, Vidhya

Author_Institution

NYNEX Sci. & Technol. Inc., White Plains, NY, USA

Volume

2

fYear

1997

fDate

21-24 Apr 1997

Firstpage

1523

Abstract

HMM-based algorithms for speaker-dependent recognition as well as speaker-independent recognition form the basis of speech services developed at Nynex S&T and deployed widely by Nynex and other telephone service providers. Based on the analysis of the initially deployed VoiceDialing service, the robustness of these algorithms was recognized to be a dominant issue. We discuss the features of a high-performance, robust speaker-dependent recognition algorithm, and include some deployment issues that were successfully resolved

Keywords

hidden Markov models; speech processing; speech recognition; telephony; voice communication; voice equipment; HMM based algorithms; Nynex S&T; VoiceDialing service; noise cancellation; robust speaker dependent recognition algorithm; speaker independent recognition; speech recognition based telephony services; speech services; telephone service providers; Algorithm design and analysis; Feedback; Hardware; Hidden Markov models; Noise robustness; Signal processing algorithms; Speech analysis; Speech recognition; Telephony; Usability;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on

Conference_Location

Munich

ISSN

1520-6149

Print_ISBN

0-8186-7919-0

Type

conf

DOI

10.1109/ICASSP.1997.596240

Filename

596240