ROBUST CONNECTED WORD SPEECH RECOGNITION USING WEIGHTE VITERBI ALGORITHM AND CONTEXT-DEPENDENT TEMPORAL CONSTRAINTS

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dc.contributor.authorYoma N.B.
dc.contributor.authorLing L.L.
dc.contributor.authorStump S.D.
dc.date.accessioned2024-03-13T01:47:30Z
dc.date.available2024-03-13T01:47:30Z
dc.date.issued1999
dc.description.abstract© 1999 6th European Conference on Speech Communication and Technology, EUROSPEECH 1999. All rights reserved.This paper addresses the problem of connected word speech recognition with signals corrupted by additive and convolutional noise. Context-dependent temporal constraints are proposed and compared with the ordinary temporal restrictions, and used in combination with the weighted Viterbi algorithm which had been tested with isolated word recognition experiments in previous papers. Connected-word recognition tests show that the weighted Viterbi algorithm depends on the accuracy of the state duration modelling and the approach here covered can lead to reductions as high as 90 or 95% in the error rate at moderate SNR using spectral subtraction, an easily implemented technique, even with a poor estimation for noise and without using any information about the speaker. It is also shown that the weighting procedure can reduce the error rate when cepstral mean normalization is also used to cancel both additive and convolutional noise.
dc.description.firstpage2869
dc.description.lastpage2872
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/38065
dc.relation.ispartof6th European Conference on Speech Communication and Technology, EUROSPEECH 1999
dc.rightsAcesso Restrito
dc.titleROBUST CONNECTED WORD SPEECH RECOGNITION USING WEIGHTE VITERBI ALGORITHM AND CONTEXT-DEPENDENT TEMPORAL CONSTRAINTS
dc.typeArtigo de evento
local.scopus.citations0
local.scopus.eid2-s2.0-85135273598
local.scopus.subject% reductions
local.scopus.subjectContext dependent
local.scopus.subjectDuration modelling
local.scopus.subjectError rate
local.scopus.subjectIsolated word recognition
local.scopus.subjectSpectral subtractions
local.scopus.subjectTemporal constraints
local.scopus.subjectTemporal restrictions
local.scopus.subjectWeighting procedure
local.scopus.subjectWord recognition tests
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85135273598&origin=inward
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