ISCA International Workshop on Speech and Language Technology in Education (SLaTE 2011)
This paper presents a method to introduce the notion of a student
selected difficulty level for the task of pronunciation learning
of a second language. Three difficulty levels, novice, acceptable
and native, are constructed using a tri-/bi- and unigram
language model each using a specific set of broad phonetic
groups determined using underspecification. The evaluation of
the experiment is based on a target language of American English
where Nigerian, Hungarian, Indonesian, Syrian, Pakistani
and Portuguese students participate. The results show that the
addition of difficulty levels returns specific mis-pronunciation
information for a student indicating what pronunciation practice
is required before they go to the next difficulty level.
Index Terms. pronunciation learning, broad phonetic groups
Bibliographic reference. Kane, Mark / Cabral, João P. / Zahra, Amalia / Carson-Berndsen, Julie (2011): "Introducing difficulty-levels in pronunciation learning", In SLaTE-2011, 37-40.