A brief rough sketch of the characteristics of some selected fields of speech sciences was followed by a review of the recent models of speech sounds in phonology. In the review part of the article, priority was given to the problems of the representation of speech rather than the phonological rules. Also, special attention was paid to the autosegmental phonological representation that stresses the multidinensional temporal structure of speech. The relation between the symbolic studies and the quantitative studies was discussed at the end of the whole article.
