The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 01, 2018

Filed:

Mar. 08, 2016
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Hong-Kwang J. Kuo, Pleasantville, NY (US);

Lidia L. Mangu, New York, NY (US);

Samuel Thomas, Elmsford, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01L 15/00 (2006.01); G10L 25/87 (2013.01); G10L 15/22 (2006.01); G10L 15/14 (2006.01); G10L 25/30 (2013.01); G10L 15/30 (2013.01);
U.S. Cl.
CPC ...
G10L 25/87 (2013.01); G10L 15/142 (2013.01); G10L 15/22 (2013.01); G10L 25/30 (2013.01); G10L 15/30 (2013.01); G10L 2015/225 (2013.01);
Abstract

An automatic speech recognition system and a method performed by an automatic speech recognition system are provided. The method includes performing at least two passes of speech activity detection on an acoustic utterance uttered by a speaker. The at least two passes include an initial pass and a subsequent pass. The method further includes estimating at least one of feature statistics and transforms for acoustic feature extraction and acoustic modeling based on an output of an initial pass. The method further includes performing automatic speech recognition using an output of the subsequent pass while bypassing an output of the initial pass to recognize the acoustic utterance.


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