Variability is a term used to cover several types of phenomena in language sound patterns and in phonetic realization of those patterns. Variability refers to the fact that every repetition of an utterance is different, in amplitude, rate of delivery, formant frequencies, fundamental frequency or minor phase relationship changes across the sound…

The development of differential vowel duration was observed in six children who were tape recorded at 1-month intervals from 26 to 36 months of age and in three children from 21 to 24 months of age. By differential vowel duration is meant the relatively different durations of vowels according to whether the following consonant is voiced or…

The development of differential vowel duration was observed in six children who were tape recorded at 1-month intervals from 26 to 36 months of age and in three children from 21 to 24 months of age. By differential vowel duration is meant the relatively different durations of vowels according to whether the following consonant is voiced or…

A preliminary study dealt with the ways in which children between six and seven years of age organize spoken language, specifically aspects of the temporal and segmental structure of polysyllabic English words containing the syllable C/jul/ (e.g., pediculous). (Author/SW)

Investigated with 66 elementary children (all enrolled in articulation therapy) was the assumption that children who are in the process of developing automatization of correct production. (Author/SBH)

Intervocalic features of Villa Mella Spanish, a dialect spoken in a region of Santo Domingo, are reviewed, with particular emphasis on the intervocal "d." (CB)

The availability of cochlear implants in younger children has provided the opportunity to evaluate the relative impact of the production system, or the sounds young children can say, and the auditory system, or the sounds children can hear, on early vocal communication. Limited access to the acoustic properties of speech results in differences in…

This report is one of a regular series on the status and progress of studies on the nature of speech, instrumentation for its investigation, and practical applications. The ten papers treat the following topics: speech synthesis as a tool for the study of speech production; the study of articulatory organization; phonetic perception; cardiac…

A distinction is made between the acquisition of phonetics and of phonology. Their interaction and the ways in which they interfere with each other are discussed. Data on the acquisition of English fricatives for several children are given, and are analyzed separately for the phonological and phonetic aspects of acquisition. (Author/CLK)

This treatise on the theoretical and historical foundations of distinctive feature theory traces the evolution of the distinctive features concept in the context of related notions current in linguistic theory, discusses the evolution of individual distinctive features, and criticizes certain acoustic and perceptual correlates attributed to these…

This paper is one of a number of studies within the conceptual framework of natural phonology, according to which phonological processes are of two kinds, context-free and context-sensitive. Context-free changes can be explained by the character of the sounds themselves; context-sensitive processes are explained largely by the function of the…