Second International Conference on Spoken Language Processing (ICSLP'92)

Banff, Alberta, Canada
October 13-16, 1992

Syllabic Fillers for Spanish HMM Keyword Spotting

Eduardo Lleida, Josť B. Marino, J. Salavedra, Antonio Bonafonte

Dept. of Signal Theory and Communications (U.P.C.), Barcelona, Spain

In this paper, we describe a preliminary investigation of the use of syllabic fillers to model the out-of-vocabulary utterances or non-keywords in fluent speech for Spanish speech recognition systems. The Spanish language has a syllabic structure which suggest to use syllabic models to deal with the out-of-vocabulary utterances. Furthermore, Spanish demisyllable units has been used successfully as recognition units in the context of continuous speech recognition [7,8]. Thus, our proposal is to use a compact representation of the vocabulary words and the out-of-vocabulary words in terms of demisyllable units and syllabic fillers. The paper evaluates the performances of the syllabic fillers to deal with out-of-vocabulary utterances. As application task, we use the detection of digits in fluent speech.

Full Paper

Bibliographic reference.  Lleida, Eduardo / Marino, Josť B. / Salavedra, J. / Bonafonte, Antonio (1992): "Syllabic fillers for Spanish HMM keyword spotting", In ICSLP-1992, 5-8.