Constancy of (acoustic) relative timing measures in phrase-level utterances

Weismer, Gary; Fennell, Ann M.

doi:10.1121/1.392453

Cited by 23 publications

(6 citation statements)

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“…This linear relationship remains invariant across changes in speaking rate and stress. (Similar constancies in relative timing of acoustic events, across changes in rate, have been reported by Weismer & Fennell 1985. ) Kelso & Tuller (1985) have further analysed their movement data in terms of phase and have shown that the consonant gesture begins at a fixed phase angle in the vowel cycle.…”

Section: Specification Of Gestures and Inter-gestural Relationssupporting

confidence: 80%

Towards an articulatory phonology

1986

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We propose an approach to phonological representation based on describing an utterance as an organised pattern of overlapping articulatory gestures. Because movement is inherent in our definition of gestures, these gestural ‘constellations’ can account for both spatial and temporal properties of speech in a relatively simple way. At the same time, taken as phonological representations, such gestural analyses offer many of the same advantages provided by recent nonlinear phonological theories, and we give examples of how gestural analyses simplify the description of such ‘complex segments’ as /s/–stop clusters and prenasalised stops. Thus, gestural structures can be seen as providing a principled link between phonological and physical description.

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Section: Specification Of Gestures and Inter-gestural Relationssupporting

confidence: 80%

Towards an articulatory phonology

1986

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“…Most studies exploring the relationship between aging and speech were exclusively limited to participants under the age of 80 years [2][3][4], and those including older populations were limited to normal elderly, with relatively high levels of cognitive functioning and without a diagnosis of dementia [5].…”

Section: Introductionmentioning

confidence: 99%

Acoustic Properties of Vocally Disruptive Behaviors in the Nursing Home

et al. 2003

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Background: Disruptive vocalizations are among the most common behavior problems in the nursing home. However, their acoustic properties have not been previously investigated. Objective: This paper examines the acoustic properties of disruptive vocalizations and attempts to link them to resident and verbalization characteristics. Methods: This study characterizes the sounds emitted by 26 nursing home residents who manifested disruptive vocalizations. Verbalizations were audiotaped and then used in a sonographic evaluation and an acoustic analysis. Results: Vocalizations of verbally agitated nursing home residents were characterized by their relatively short duration. Consistent positive correlations were found between seemingly disturbing types of vocalizations, such as yelling and howling, and higher levels of several parameters of the fundamental frequency. A similar positive correlation was also found between acoustic parameters and medical disease indicators. With the exception of the length of stream of utterances, the indicators did not differentiate between types of dementia. Conclusions: Because of the large number of comparisons undertaken, it is difficult to conclude which associations between acoustic properties and resident or vocalization characteristics are attributable to real underlying trends and which are due to chance and error. Consistencies that deserve further research pertain to the perceptions of the types of vocalizations the person tends to emit and to the physical health of the person.

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“…The observed consistency in the relative timing (or phase angle stability) between the upper lip and jaw existed despite changes in rate and stress. Stability across suprasegmentaI changes has also been observed in the electromyographic activity of perioral muscles (Tuller et al, 1982(Tuller et al, , 1983, oral-laryngeal coordination during voiceless consonant production (Lofqv[st and Yoshioka, 1984), ranges of tongue blade movement during CV transitions (Beckman et al, 1984;Fujimura, 1984Fujimura, , 1986, and even in the acoustic signal during sentence production (Weismer and Fennell, 1985). Similar phase invariance has also been reported in coordinated movements of the hand (e.g., Scholz and Kelso, 1989; Tuller and Kelso, 1989).…”

Section: Introductionmentioning

confidence: 81%

Different phase-stable relationships of the upper lip and jaw for production of vowels and diphthongs

Shaiman

Porter

1991

The Journal of the Acoustical Society of America

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Relational invariants have been reported in the timing of articulatory gestures across suprasegmental changes, such as rate and stress. In the current study, the relative timing of the upper lip and jaw was investigated across changes in both suprasegmental and segmental characteristics of speech. The onset of upper lip movement relative to the vowel-to-vowel jaw cycle during intervocalic bilabial production was represented as a phase angle, and analyzed across changes in stress, vowel height, and vowel/diphthong identity. Results indicated that the relative timing of the upper lip and jaw varied systematically with changes in stress and vowel/diphthong identity, while remaining constant across changes in vowel height. It appears that modifications in relative timing may be due to adjustments in the jaw cycle as a result of the compound nature of jaw movement for diphthongs as compared to vowels, with further modifications due to the effect of stress on these compound movements.

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Constancy of (acoustic) relative timing measures in phrase-level utterances

Cited by 23 publications

References 0 publications

Towards an articulatory phonology

Towards an articulatory phonology

Acoustic Properties of Vocally Disruptive Behaviors in the Nursing Home

Different phase-stable relationships of the upper lip and jaw for production of vowels and diphthongs

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