DocumentCode
1329449
Title
Reduced sets of subword units for continuous speech recognition of Portuguese
Author
Cerqueira Bisp dos Santos, S. ; Alcaim, A.
Author_Institution
CETUC-PUC, Rio de Janeiro, Brazil
Volume
36
Issue
6
fYear
2000
fDate
3/16/2000 12:00:00 AM
Firstpage
586
Lastpage
588
Abstract
An investigation is presented concerning two sets of subword units for continuous speech recognition, which are based on the characteristics of the Portuguese language. In the first set, with 149 units, it is considered that syllables which contain an epenthetic vowel can be formed by two CV (consonant-vowel) units. In the second set, with 254 units, these syllables are regarded as CCV (consonant-consonant-vowel) units. The recognition performance obtained with the two unit sets are comparable if a bigram model is used at the unit level. In this case, the first set is definitely preferable because it enables the complexity to be significantly reduced
Keywords
computational complexity; speech recognition; Portuguese language; bigram model; complexity reduction; consonant-consonant-vowel units; consonant-vowel units; continuous speech recognition; epenthetic vowel; recognition performance; subword units; syllables;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20000446
Filename
840185
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