Interspeech'2005 - Eurospeech
In this paper we present a method for defining the question set for the induction of acoustic phonetic decision trees. The method is data driven resulting in a continuous feature space in contrast to the usual categorical one. We apply the features to a multi-lingual speech recognition task, outperforming consistently the standard method using IPA-based characteristics. An extension to cross-lingual applications together with first preliminary results are given too.
Bibliographic reference. Diehl, Frank / Moreno, Asuncion / Monte, Enric (2005): "Continuous local codebook features for multi- and cross-lingual acoustic phonetic modelling", In INTERSPEECH-2005, 3005-3008.