Some Factors In The Intelligibility Of Cleft-Palate Speech

McWilliams, Betty Jane

doi:10.1044/jshd.1904.524

Cited by 60 publications

(54 citation statements)

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“…A t first sight, this finding appeared to indicate a significant relationship between intelligibility and hypernasality and to confirm the findings o f other researchers (3,5,11,14,18). However, when the data were more fully analyzed by exploring the relation ships between intelligibility and hypernasality within each o f the V C V syllables investigated, only 62 significant correlations were found o f a possible 324.…”

Section: Discussionsupporting

confidence: 71%

“…A rather consistent trend in this literature has shown the articulatory skills o f cleft-palate speakers to be influenced by the presence o f perceived hypemasality. Some investigators (3,5,11,14,16,18) have demonstrated significant relationships between per ceived hypernasality and the perceptual aspects o f articulation defectiveness, e.g., intelligibility. Van Demark (17) has suggested that the speech characteristics o f nasality and intelligibility ' ... are truly related or the interrelationships are artifacts o f the scaling procedure ...' Results o f an investigation completed by Subtelny et al (14) lead these authors to state that the relationships between nasality and intelligibility are not clearly defined.…”

mentioning

confidence: 99%

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Phonetic Contexts: Their Effects on Perceived Intelligibility in Cleft-Palate Speakers

Moore

Sommers²

1975

Folia Phoniatr Logop

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Section: Discussionsupporting

confidence: 71%

mentioning

confidence: 99%

Phonetic Contexts: Their Effects on Perceived Intelligibility in Cleft-Palate Speakers

Moore

Sommers²

1975

Folia Phoniatr Logop

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“…Several studies have shown a positive correlation between intelligibility and articulation errors (Phillips, 1954;McWilliams, 1954;Van Demark, 1966;Whitehill and Chun, 2002). However, the specific articulation errors which contributed to reduced intelligibility were not determined in these studies.…”

Section: Introductionmentioning

confidence: 95%

Single‐word intelligibility in speakers with repaired cleft palate

Whitehill

Chau

2004

Clinical Linguistics & Phonetics

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Many speakers with repaired cleft palate have reduced intelligibility, but there are limitations with current procedures for assessing intelligibility. The aim of this study was to construct a single-word intelligibility test for speakers with cleft palate. The test used a multiple-choice identification format, and was based on phonetic contrasts which are problematic for speakers with cleft palate. Fifteen Cantonese speakers with repaired cleft palate served as speakers. The intelligibility score of each speaker was calculated, based on the number of words correctly identified by eight naive listeners. The most problematic contrasts, based on mean error proportions, were place of articulation (stops and nasals), stop versus fricative, and stop versus affricate. The most robust contrasts were also determined, and physiological and language-specific interpretations offered. Single-word intelligibility could be predicted with 91% accuracy using three phonetic contrasts. The importance of an 'explanatory' intelligibility test, for focusing treatment and monitoring severity, is discussed.

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“…However, auditory perceptual judgments of disordered speech may show poor inter-and intra-rater reliability (Kent, 1996), and perception of hypernasality is no exception (Bradford et al, 1964). In particular, ratings of hypernasality in speech have been found to depend on factors such as the rater's level of experience with clinical judgments of speech (Lewis et al, 2003), as well as the speaker's vocal intensity (Counihan and Cullinan, 1972) and overall intelligibility (McWilliams, 1954). When speech therapy for resonance disorders is indicated (i.e., the resonance disorder is not the result of a severe structural deficiency), treatment in school and rehabilitation settings generally occurs one to three times a week with an SLP and also requires daily home practice of techniques trained in therapy.…”

Section: Introductionmentioning

confidence: 99%

Effects of spectral content on Horii Oral-Nasal Coupling scores in children

Varghese

Mendoza

Braden

et al. 2014

The Journal of the Acoustical Society of America

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A miniature accelerometer and microphone can be used to obtain Horii Oral-Nasal Coupling (HONC) scores to objectively measure nasalization of speech. While this instrumentation compares favorably in terms of size and cost relative to other objective measures of nasality, the metric has not been well characterized in children. Furthermore, the measure is known to be affected by vowel loading, as speech loaded with "high" vowels is consistently scored as more nasal than speech loaded with "low" vowels. Filtering the signals used in computation of the HONC score to better isolate the correlates of nasalization has been shown to reduce vowel-related effects on the metric, but the efficacy of filtering has thus far only been explored in adults. Here, HONC scores for running speech and the vowel portions of consonant-vowel-consonant tokens were calculated for the speech of 26 children, aged 4-9 yrs. Scores were computed using the broadband accelerometer and speech signals, as well as using filtered, low-frequency versions of these signals. HONC scores obtained using both broadband and filtered signals resulted in well-separated scores for nasal and non-nasal speech. HONC scores computed using filtered signals were found to exhibit less withinparticipant variability.

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Some Factors In The Intelligibility Of Cleft-Palate Speech

Cited by 60 publications

References 0 publications

Phonetic Contexts: Their Effects on Perceived Intelligibility in Cleft-Palate Speakers

Phonetic Contexts: Their Effects on Perceived Intelligibility in Cleft-Palate Speakers

Single‐word intelligibility in speakers with repaired cleft palate

Effects of spectral content on Horii Oral-Nasal Coupling scores in children

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