Title
Speaker-Independent Speech Recognition Based On Tree-Structured Speaker Clustering
Abstract
We have already proposed the application of tree-structured speaker clustering to supervised speaker adaptation. This paper proposes its application to unsupervised speaker adaptation and speaker-independent (SI) speech recognition. This clustering involves the selection of a speaker cluster from among multiple reference speaker clusters arranged in a tree structure. Cluster selection, unlike parameter training, enables quick adaptation using only a small amount of training data. This method was applied to a hidden Markov network (HMnet) and evaluated in Japanese phoneme and phrase recognition experiments. Results show effective unsupervised speaker adaptation using only 5 s calibration speech. In the SI speech recognition experiments, the method reduced the error rate by 8.5% compared with the conventional speaker-independent speech recognition method. (C) 1996 Academic Press Limited.
Year
DOI
Venue
1996
10.1006/csla.1996.0004
COMPUTER SPEECH AND LANGUAGE
Field
DocType
Volume
Training set,Computer science,Computational linguistics,Word error rate,Phrase,Speech recognition,Tree structure,Hidden Markov model,Cluster analysis,Speaker adaptation
Journal
10
Issue
ISSN
Citations 
1
0885-2308
19
PageRank 
References 
Authors
1.19
0
3
Name
Order
Citations
PageRank
Tetsuo Kosaka18016.41
Shoichi Matsunaga216436.02
Shigeki Sagayama31217137.97