Learn More
The aim of this study was to apply one-third-octave analysis for measuring an acoustic correlate of hypernasality in the speech of adults with a range of aetiologies (dysarthria, maxillectomy and cleft palate). Subjects included 12 speakers with hypernasality and 12 normal controls. The speech material was the vowel /i/ segmented from two Cantonese single(More)
Hypernasality is most commonly assessed using equal-appearing interval (EAI) scaling. Recently, the validity of EAI scaling for the evaluation of hypernasality has been questioned. The issue of validity rests on the psychophysical nature of the dimension to be rated. The purpose of this study was to compare EAI scaling with direct magnitude estimation(More)
Reliable perceptual judgement is important for documenting the severity of hypernasality, but high reliability can be difficult to obtain. This study investigated the effect of practice and feedback on intra-judge and inter-judge reliability of hypernasality judgements. The judges were 36 speech-language therapy students, who were randomly assigned to three(More)
OBJECTIVE Previous research using electropalatography (EPG) identified a compensatory articulation called bilabial-lingual double articulations. These double articulations were produced for bilabials by some speakers with cleft palate and involved closure at the lips occurring simultaneously with complete tongue-palate constriction. However, no normative(More)
PURPOSE Orthognathic surgery may have a positive or negative effect on speech. Perceptual evaluation of presurgical and postsurgical articulation is difficult because speech errors, when they occur, are usually fricative distortions, which may be difficult to document reliably. In this study, acoustic analysis was used to supplement perceptual judgment of(More)
BACKGROUND Cleft palate is the most common congenital deformity of the face. It could affect speech acquisition, resulting in articulation errors that could persist into adulthood. Electropalatography (EPG) has been used in speech therapy with individuals who have articulation problems that are unresponsive to "standard treatment" procedures. OBJECTIVES(More)
OBJECTIVE Previous research using electropalatography has revealed that high vowels are vulnerable to articulation errors in cleft palate speech. The error involves complete tongue-palate contact, which obstructs normal airflow through the mouth and increases nasal airflow. This study used electropalatography to provide a more detailed description of(More)
OBJECTIVE To report perceptual and dynamic articulatory electropalatography data on clicks produced as compensatory articulations by two adolescents (S1 and S2) with velocardiofacial syndrome and velopharyngeal dysfunction. RESULTS The perceptual analysis showed that both speakers produced click substitutions for English targets /t/, /d/, /k/, /g/, and S2(More)
The aims of this study were to provide a perceptual speech 'profile' for Cantonese speakers with hypokinetic dysarthria, to examine the reliability of non-expert listeners in perceptual judgements of dysarthric speech, and to investigate cross-language differences in profiles of hypokinetic dysarthria. Participants included 19 speakers with Parkinson's(More)
Increased tongue-palate contact for perceptually acceptable alveolar stops has been observed in children with speech sound disorders (SSD). This is a retrospective study that further investigated this issue by using quantitative measures to compare the target alveolar stops /t/, /d/ and /n/ produced in words by nine children with SSD (20 tokens of /t/, 13(More)