Title :
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
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;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.596240
