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1. (WO2015047517) KEYWORD DETECTION

Pub. No.:    WO/2015/047517    International Application No.:    PCT/US2014/045592
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Tue Jul 08 01:59:59 CEST 2014
IPC: G10L 15/08
G10L 15/10
G10L 15/14
G10L 15/16
G10L 15/06
Applicants: GOOGLE INC.
Inventors: SAN MARTIN, Maria Carolina Parada
GRUENSTEIN, Alexander H.
CHEN, Guoguo
Title: KEYWORD DETECTION
Abstract:
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for key phrase detection. One of the methods includes receiving a plurality of audio frame vectors that each model an audio waveform during a different period of time, generating an output feature vector for each of the audio frame vectors, wherein each output feature vector includes a set of scores that characterize an acoustic match between the corresponding audio frame vector and a set of expected event vectors, each of the expected event vectors corresponding to one of the scores and defining acoustic properties of at least a portion of a keyword, and providing each of the output feature vectors to a posterior handling module.