This study investigated acoustic-phonetic correlates of intelligibility for adult and child talkers, and whether the relative intelligibility of different talkers was dependent on listener characteristics. In experiment 1, word intelligibility was measured for 45 talkers (18 women, 15 men, 6 boys, 6 girls) from a homogeneous accent group. The material consisted of 124 words familiar to 7-year-o...

In the present investigation we aim to determine to which degree various linguistic factors contribute to the intelligibility of Swedish words among Danes. We correlated the results of an experiment on word intelligibility with eleven linguistic factors and carried out logistic regression analyses. In the experiment, the intelligibility of 384 frequent Swedish words was tested among Danish list...

Instrumental intelligibility metrics are commonly used as an alternative to intelligibility listening tests. This paper evaluates 12 existing monaural intrusive instrumental intelligibility metrics: SII, HEGP, CSII, HASPI, NCM, QSTI, STOI, ESTOI, MIKNN, SIMI, SIIB, and sEPSM. The intelligibility data used in the evaluation were obtained from ten listening tests described in the literature. The ...

Reduced speech intelligibility is a barrier to effective communication for many children with cerebral palsy (CP). Many variables may impact intelligibility, yet little research attention has sought to quantify these variables. This study examined the influence of sentence characteristics on intelligibility in two groups of children with CP (those with and without dysarthria) and typically-deve...

Previous studies have shown that "clear" speech, where the speaker intentionally tries to enunciate, has better intelligibility than "conversational" speech, which is produced in regular conversation. However, conversational and clear speech vary along a number of acoustic dimensions and it is unclear what aspects of clear speech lead to better intelligibility. Previously, Kain et al. [J. Acous...

Much of the research exploring the features of speech that distinguish intelligibility ratings has focused on monologic speech production. This study considers whether the use of specific interactive features in task-based interaction influences interlocutors' ratings of intelligibility. Five dyads completed an information gap task and rated their partners' intelligibility following task comple...

This study examined differences among transcription intelligibility scores and listener confidence ratings for three different types of speech stimuli--single words, unrelated sentences, and sentences forming a narrative--all produced by speakers with dysarthria. Twelve speakers with dysarthria of varying severity secondary to cerebral palsy and 144 listeners participated in this study. Results...

A study of speaker intelligibility involving 45 speakers from a homogeneous accent group was carried out with adult, 7-8 year old and 11-12 year old listeners. Ranking of speakers according to their intelligibility was remarkably consistent across listener groups, thus demonstrating that inherent speaker characteristics are the primary contributor to intelligibility. In a second study, listener...

Speech supplementation strategies (alphabet cues, topic cues, and combined topic and alphabet cues) have been shown to have a positive effect on speech intelligibility for many individuals with dysarthria, particularly those with severe and profound intelligibility deficits (Hustad, Auker, Natale, & Carlson, 2003a; Hustad, Jones, & Dailey, 2003b). However, less attention has been given to speak...

This paper examined the intelligibility of English / / and / / followed by the vowel / / produced by 20 native speakers of Japanese (JE / /, JE / /), and the acoustic characteristics of JE / / and / / according to the different levels of intelligibility. Five native English speakers evaluated the intelligibility of JE /s/ and / / in the word-initial position of “seat” and “sheet.” The major ene...