The Acoustic to Articulation Mapping: Non-linear or Non-unique?
2008 (English)In: INTERSPEECH 2008: 9TH ANNUAL CONFERENCE OF THE INTERNATIONAL SPEECH COMMUNICATION ASSOCIATION 2008, BAIXAS: ISCA-INST SPEECH COMMUNICATION ASSOC , 2008, 1485-1488 p.Conference paper (Refereed)
This paper studies the hypothesis that the acoustic-to-articulatory mapping is non-unique, statistically. The distributions of the acoustic and articulatory spaces are obtained by fitting the data into a Gaussian Mixture Model. The kurtosis is used to measure the non-Gaussianity of the distributions and the Bhattacharya distance is used to find the difference between distributions of the acoustic vectors producing non-unique articulator configurations. It is found that stop consonants and alveolar fricatives arc generally not only non-linear but also non-unique, while dental fricatives arc found to be highly non-linear but fairly unique. Two more investigations are also discussed: the first is on how well the best possible piecewise linear regression is likely to perform, the second is on whether the dynamic constraints improve the ability to predict different articulatory regions corresponding to the same region in the acoustic space.
Place, publisher, year, edition, pages
BAIXAS: ISCA-INST SPEECH COMMUNICATION ASSOC , 2008. 1485-1488 p.
Acoustic-to-Articulatory mapping, Non-uniquness, Bhattacharya distance, MOCHA-EMA
General Language Studies and Linguistics Computer and Information Science
IdentifiersURN: urn:nbn:se:kth:diva-29853ISI: 000277026100398ScopusID: 2-s2.0-84867222549ISBN: 978-1-61567-378-0OAI: oai:DiVA.org:kth-29853DiVA: diva2:399751
9th Annual Conference of the International-Speech-Communication-Association (INTERSPEECH 2008), Brisbane, AUSTRALIA, SEP 22-26, 2008
QC 201102222011-02-232011-02-172011-02-23Bibliographically approved