Measuring and Modeling Speech Production.
| Number | 1075 |
|---|---|
| Year | 1998 |
| Drawer | 20 |
| Entry Date | 06/29/1998 |
| Authors | Rubin, P., and Vatikiotis-Bateson, E. |
| Contact | Philip Rubin at Haskins Laboratories |
| Publication | Hopp, S.L, Owren, M.J., and Evans, C.S. Animal Acoustic Communication. Springer-Verlag, 1998, 251-290. |
| url | http://www.haskins.yale.edu/Reprints/HL1075.pdf |
| Abstract | [Introduction] In human communication, the speech system is specialized for rapid transfer of information (Liberman et al. 1967; Mattingly and Liberman 1988). Significant events in the acoustic signal can occur in an overlapped or parallel fashion due to the coproduction of speech gestures. One result is that aspects of the signal corresponding to different linguistic units, such as consonants and vowels, often cannot be isolated in the acoustic stream. One way to help tease apart the components of the speech signal is consider the physical system that gives rise to the acoustic information: the acoustic encoding of phonetic information is viewed in light of the flexibility inherent in the production apparatus, particularly the human supralaryngeal vocal tract, in which individual articulators or groups of articulators can function semi-independently. In this chapter we review this approach. First, we show how the analysis of speech acoustics has benefited by treating the sound production system as one in which the contributions of physical acoustic sources and physiologically determined filters are combined. We then discuss how acoustic diversity has resulted in a desire to find articulatory simplicity. In the process, we review some of the methods used to examine articulatory activity, and also describe in detail a particular attempt at modeling the coordination of the speech articulators. Finally, we consider some recent attempts to explore the links between production, perception, and acoustics in a dynamic-systems approach and in connectionist models. Where possible, recent trends in the field have been exemplified by projects involving ourselves and our colleagues. Although articulation in most animals is simpler than human speech production, the methods we describe are also applicable in this domain. |
| Notes | No formal abstract. |
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