A segmental HMM based on a modified emission probability

Konferenz: Sprachkommunikation 2008 - 8. ITG-Fachtagung
08.10.2008 - 10.10.2008 in Aachen, Germany

Tagungsband: Sprachkommunikation 2008

Seiten: 4Sprache: EnglischTyp: PDF

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Windmann, Stefan; Haeb-Umbach, Reinhold; Leutnant, Volker (Dept. of Communications Engineering, University of Paderborn, 33098 Paderborn, Germany)

In this paper, a novel segmental Hidden Markov Model (HMM) is proposed. The model is based on a modified emission density where additional statistical dependencies between subsequent frames of the speech signal are considered. In the following we derive an effective search strategy for the modified statistical model. Further an approach to parameter reduction is introduced. Experiments were carried out on the AURORA2 database where consistent im