Background: The Beatalk technique is a speech therapy method, based on human beatboxing, involving intense, rapid repetitions of speech-like sounds. The goals of the current feasibility study were to test its effect in enhancing articulation accuracy and voice measures in a small group of adults with intellectual disability (ID), using a wide…

Purpose: This study investigated whether perceptual ratings of speech parameters were predictive of transcription intelligibility in quiet and in noise for speakers with Parkinson's disease (PD). Method: Ten speakers with PD and five healthy controls read 56 sentences. One group of 60 listeners orthographically transcribed the sentences in quiet,…

Purpose: The aim of this study was to determine how the speech disorder profiles in Down syndrome (DS) relate to reduced intelligibility, atypical overall quality, and impairments in the subsystems of speech production (phonation, articulation, resonance, and prosody). Method: Auditory-perceptual ratings of intelligibility, overall quality, and…

Purpose: Most acoustic and articulatory studies on /l/ have focused on either duration, formant frequencies, or tongue shape during the constriction interval. Only a limited set of data exists for the transition characteristics of /l/ to and from surrounding vowels. The aim of this study was to examine second formant (F2) transition…

Purpose: We documented speech and voice characteristics associated with oculopharyngeal muscular dystrophy (OPMD). Although it is a rare disease, OPMD offers the opportunity to study the impact of myopathic weakness on speech production in the absence of neurologic deficits in a relatively homogeneous group of speakers. Methods: Twelve individuals…

The present study examines the effects of training native Japanese speakers in the production of American /r/ using spectrographic visual feedback. Within a modified single-subject design, two native Japanese participants produced single words containing /r/ in a variety of positions while viewing live spectrographic feedback with the aim of…

This paper presents a study on implementing the ASR-based CALL (computer-assisted language learning based upon automatic speech recognition) system embedded with both formative and summative feedback approaches and using implicit and explicit strategies to enhance adult and young learners' English pronunciation. Two groups of learners including 18…

We investigated how articulatory complexity at the phoneme level is manifested neurobiologically in an overt production task. fMRI images were acquired from young Korean-speaking adults as they pronounced bisyllabic pseudowords in which we manipulated phonological complexity defined in terms of vowel duration and instability (viz., COMPLEX:…

This article discusses 4 types of phonological knowledge: knowledge of the acoustic and perceptual characteristics of speech sounds (perceptual knowledge), knowledge of the articulatory characteristics of speech sounds (articulatory knowledge), higher level knowledge of the ways that words can be divided into sounds and related phonotactic…

Black children and White children were equally intelligible to Black adult listeners, while White adult listeners found White children significantly more intelligible than Black children. Noise deteriorated word discrimination scores of the Black and White listeners differently. (Author/RL)

Comparison of normal-speaking (N=20) and misarticulating (N=20) four- to six-year-olds and adults (N=16) revealed that adults were significantly more accurate in detecting mispronunciations than either group of children, while performance between the two groups of children was similar. Words that children found most difficult were also those on…

This textbook has been designed for courses in practical phonetics for beginning students. The point of view is that general phonetics is a primary skill of great importance to language students who want to acquire a fluent and accurate spoken mastery of a language in adulthood, as well as to linguists who need it as a basic tool of their…