Using a set of fine-grained auditory discrimination tasks, 21 children with language-learning problems were compared with 21 normal children, aged six-nine. Across three years, children with language-learning problems showed poorer auditory discrimination for temporally based acoustic differences, poorer receptive vocabulary and language…

Purpose: This study was designed to determine whether within-speaker fluctuations in speech intelligibility occurred among speakers with dysarthria who produced a reading passage, and, if they did, whether selected linguistic and acoustic variables predicted the variations in speech intelligibility. Method: Participants with dysarthria included a…

This investigation is a comprehensive acoustic study of 4 voiceless fricatives (/f [theta] s [esh]/) in English produced by adults and pre-and postpubescent children aged 6-14 years. Vowel duration, amplitude, and several different spectral measures (including spectral tilt and spectral moments) were examined. Of specific interest was the pattern…

This report (for January 1--June 30, 1970) is one of a regular series on the status and progress of studies on the nature of speech, instrumentation for its investigation and practical application thereof. Extended reports and manuscripts cover the following topics: Hemispheric Specialization for Speech Perception; Ear Differences in the Recall of…

The present paper comprises an overview of techniques using ultrasound in speech (re)habilitation. Ultrasound treatment techniques have been developed for English lingual stops, vowels, sibilants, and liquids. These techniques come from a series of small "n" studies with adolescents and adults with severe hearing impairment, residual…

Converging evidence supports the hypothesis that the most common subtype of childhood speech sound disorder (SSD) of currently unknown origin is genetically transmitted. We report the first findings toward a set of diagnostic markers to differentiate this proposed etiological subtype (provisionally termed "speech delay-genetic") from other…

The monograph contains two papers. The first presents a generative grammar for verbal forms in French. It consists of an ordered set of rewrite rules and a set of tables. It generates all existing verbal forms without generating any non-existing ones. The departure from an ordinary generative grammar lies in the use of a tabular form for…

The essays in this collection cover a wide variety of topics related to linguistics and speech. Many essays cover topics concerned with phonology: phonological units, developmental phonology, phonetic reality, rhythmic prose, sound syntax, and meaning, interconsonantal differences, and Japanese and English consonant phonemes. Other topics in the…

Ultrasound can be used to address unresolved questions in phonological theory. To date, some studies have shown that results from ultrasound imaging can shed light on how differences in phonological elements are implemented. Phenomena that have been investigated include transitional schwa, vowel coalescence, and transparent vowels. A study of…

Correct pronunciation is often a later step in the process of teaching English as a second language. However, a focus on the correct articulation of vowels can significantly improve listening and comprehension skills as well as articulatory skills. Vowels and consonants differ in their acoustic properties. Unlike consonants, vowel sounds are…

This report is one of a regular series on the status and progress of speech research. Manuscript topics are categories and context in the perception of isolated steady-state vowels; tongue position in rounded and unrounded front vowel pairs; the reading behavior of dyslexics: is there a distinctive pattern?; articulatory units: segments or…

This report describes in two volumes the proceedings of a conference on the perception of language held at the University of Pittsburgh in January, 1968. The objectives of the conference, to present the particular research interests of the participants and to attempt to find points of concurrence in thinking through discussion of the conference…

This report on speech research contains papers describing experiments involving both information processing and speech production. The papers concerned with information processing cover such topics as peripheral and central processes in vision, separate speech and nonspeech processing in dichotic listening, and dichotic fusion along an acoustic…

This book is intended to be an introduction to the sound system of the Spanish language. The book is descriptive in nature and presents a true picture of the language as it is spoken by native speakers from a wide variety of dialect zones. The book is divided into five parts and 25 chapters. Part one, Phonetics and Phonology," includes the…

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 reports contained in this particular number are state-of-the-art reviews of work central to the Haskins Laboratories' areas of research. The papers included are: (1)…