Title
Acoustic normalization of children's speech
Abstract
Young speakers are not represented adequately in current speech recognizers. In this paper we focus on the problem to adapt the acoustic frontend of a speech recognizer which has been trained on adults' speech to achieve a better performance on speech from children. We introduce and evaluate a method to perform non-linear VTLN by an unconstrained data-driven op- timization of the filterbank. A second approach normalizes the speaking rate of the young speakers with the PSOLA algorithm. Significant reductions in word error rate have been achieved.
Year
Venue
Keywords
2003
INTERSPEECH
word error rate
Field
DocType
Citations 
PSOLA,Normalization (statistics),Computer science,Word error rate,Filter bank,Speech recognition
Conference
20
PageRank 
References 
Authors
1.57
9
4
Name
Order
Citations
PageRank
Georg Stemmer113215.27
Christian Hacker223522.51
Stefan Steidl3114079.71
Elmar Nöth4959158.94