IN THIS ARTICLE THE NATURE OF THE DISCIPLINE OF SPEECH SCIENCE IS CONSIDERED AND THE VARIOUS BASIC AND APPLIED AREAS OF THE DISCIPLINE ARE DISCUSSED. THE BASIC AREAS ENCOMPASS THE VARIOUS PROCESSES OF THE PHYSIOLOGY OF SPEECH PRODUCTION, THE ACOUSTICAL CHARACTERISTICS OF SPEECH, INCLUDING THE SPEECH WAVE TYPES AND THE INFORMATION-BEARING ACOUSTIC…

This study examined perceptual and articulatory confusions among the fricatives /f, v, s, z/ and voiced and unvoiced "th" in preschool children. (These phonemes are among the most difficult for children to articulate.) Seventeen children from 3.3-5.1 years of age were tested on syllables formed by taking all combinations of the six…

Reports on a study of voiced onset time in initial voiced stops in various vocalic contexts. (Author/AM)

Describes studies of voice onset time in Spanish and an acoustic feature termed presence versus absence of an abrupt consonant onset. It is suggested that this feature may be used by the Spanish listener in making a perceptual distinction between voiced and voiceless stop consonants in multiple environments. (Author/KM)

Part of a Ph.D. dissertation, University of Minnesota; results were presented in part at the 81st Meeting of the Acoustical Society of America, April 1971. (DD)

Spanish voiced stops /b,d,g/ exhibit [+continuant] allophonic variants in phonetic environments that vary across modern speech varieties. It is argued here that variation in voiced stops and spirants continues to be associated very directly with physical factors in speech production as circumscribed by five phonetic correlates of spoken language…

The representation of labiovelars in feature geometry is discussed, using primarily evidence from Konni, a Gur language of northern Ghana, and data from some other languages. The discussion is based on an observation that place assimilation of a nasal consonant to labiovelars does not result universally in a labiovelar nasal, as has been theorized…

There has been a consensus among linguists that laryngeal and superlaryngeal nodes are located under the root node and place node is under the superlaryngeal node. However, there is very little consensus on where manner of articulation features belong. A phonological analysis of the spreading and delinking process occurring in the educated Spanish…

A discussion of pharyngeal fricatives in Arabic looks at voiced and voiceless varieties within the context of K. L. Pike's classifications. Pike treated pharyngeal fricatives as standing apart from others, including a number of oral fricatives and one glottal fricative in a category he called "frictionals." Later, however, he…

This paper reports on an investigation of the voice-onset-time (VOT) characteristics of word-initial stops produced by four four-year-old children. Instrumental analysis of the children's spontaneous speech showed that they had distinct distributions for voiced and voiceless stops at all three places of articulation and that there was very little…

Allophonic variations in the quality and voicelessness of British English Received Pronunciation /1/ were investigated, largely through their acoustic correlates as revealed by spectrography. (Author/RM)

A sentence-reading procedure was used to study the influence of syntactic structure on the timing of syllables in speech production. The study was designed to test whether syllable lengthening might be sensitive to the distinction between surface and underlying structure. (Author/RM)

Examined the effects of rounded and unrounded vowels on the perception of the voiceless fricatives "s" and "sh" by adults and by young children who could and could not produce both sounds. Concluded that productive mastery is not critically responsible for perception of the distinction between the two phonemes or the…