Patent · US Active

Feature normalization inputs to front end processing for automatic speech recognition

US9984676B2 · kind B2 · utility

0Cited by

18References

20Claims

0Family size

Assignee

Nuance Communications, Inc. · US

Inventors

Dermot Connolly · Aachen, DE
Daniel Willett · Eltville am Rhein, DE

Key dates

Filing date	Jul 24, 2012
Grant date	May 29, 2018
Priority date	—
Expiry date	Aug 14, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG10L25/24
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A computer-implemented method is described for front end speech processing for automatic speech recognition. A sequence of speech features which characterize an unknown speech input is received with a computer process. A first subset of the speech features is normalized with a computer process using a first feature normalizing function. A second subset of the speech features is normalized with a computer process using a second feature normalizing function different from the first feature normalizing function. The normalized speech features in the first and second subsets are combined with a computer process to produce a sequence of mixed normalized speech features for automatic speech recognition.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.