Telephonic communications – Audio message storage – retrieval – or synthesis – Multilingual system or operation
Patent
1994-04-14
1996-01-30
Hofsass, Jeffery A.
Telephonic communications
Audio message storage, retrieval, or synthesis
Multilingual system or operation
379213, 379142, 381 43, 395 253, 395 279, H04M 342
Patent
active
054886520
ABSTRACT:
In methods and apparatus for at least partially automating a telephone directory assistance function, directory assistance callers are prompted to speak locality or called entity names associated with desired directory listings. A speech recognition algorithm is applied to speech signals received in response to prompting to determine spoken locality or called entity names. Desired telephone numbers are released to callers, and released telephone numbers are used to confirm or correct at least some of the recognized locality or called entity names. Speech signal representations labelled with the confirmed or corrected names are used as labelled speech tokens to refine prior training of the speech recognition algorithm. The training refinement automatically adjusts for deficiencies in prior training of the speech recognition algorithm and to long term changes in the speech patterns of directory assistance callers served by a particular directory assistance installation. The methods can be generalized to other speech recognition applications.
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Bielby Gregory J.
Gupta Vishwa N.
Hodgson Lauren C.
Lennig Matthew
Sharp R. Douglas
Hofsass Jeffery A.
Junkin C. W.
Northern Telecom Limited
Weaver Scott L.
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