DocumentCode
1645031
Title
Quadratic Function Based Frequency Warping Method
Author
Honghai, Wang ; Gang, Liu ; Jun, Guo
Author_Institution
Beijing Univ. of Posts & Telecommun., Beijing
fYear
2007
Firstpage
530
Lastpage
533
Abstract
A new quadratic warping function is proposed with the intention to compensate for the disadvantages with traditional frequency warping functions. The quadratic curve is determined by frequency starting/ending point as well as the inflexion point which can be determined through grid search or variable step search. Application of this new frequency warping method in ALID reveals that the new quadratic warping function outperforms linear function and piecewise linear function in decreasing recognition error rate.
Keywords
speaker recognition; frequency warping method; grid search; inflexion point; piecewise linear function; quadratic curve; quadratic warping function; variable step search; Chromium; Error analysis; Frequency estimation; Maximum likelihood estimation; Natural languages; Pattern recognition; Piecewise linear techniques; Telecommunication control; Automatic Language Identification (ALID); Frequency Warping Function; Speaker Normalization; Warping Factor;
fLanguage
English
Publisher
ieee
Conference_Titel
Control Conference, 2007. CCC 2007. Chinese
Conference_Location
Hunan
Print_ISBN
978-7-81124-055-9
Electronic_ISBN
978-7-900719-22-5
Type
conf
DOI
10.1109/CHICC.2006.4347079
Filename
4347079
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