Dealing with Phrase Level Co-Articulation (PLC) in speech recognition: a first approach

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    Abstract

    Whereas nowadays within-word co-articulation effects are usually sufficiently dealt with in automatic speech recognition, this is not always the case with phrase level co-articulation effects (PLC). This paper describes a first approach in dealing with phrase level co-articulation by applying these rules on the reference transcripts used for training our recogniser and by adding a set of temporary PLC phones that later on will be mapped on the original phones. In fact we temporarily break down acoustic context into a general and a PLC context. With this method, more robust models could be trained because phones that are confused due to PLC effects like for example /v/-/f/ and /z/-/s/, receive their own models. A first attempt to apply this method is described.
    Original languageEnglish
    Title of host publicationProceedings of the ESCA ETRW Workshop Accessing Information in Spoken Audio
    EditorsTony Robinson, Steve Renals
    Place of PublicationCambridge, UK
    PublisherESCA
    Pages64-68
    Number of pages5
    ISBN (Print)0-903428-09-1
    Publication statusPublished - 19 Feb 1999

    Publication series

    Name
    PublisherESCA

    Keywords

    • METIS-119585
    • IR-89651

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  • Cite this

    Ordelman, R. J. F., van Hessen, A. J., & van Leeuwen, D. A. (1999). Dealing with Phrase Level Co-Articulation (PLC) in speech recognition: a first approach. In T. Robinson, & S. Renals (Eds.), Proceedings of the ESCA ETRW Workshop Accessing Information in Spoken Audio (pp. 64-68). Cambridge, UK: ESCA.