Velopharyngeal aerodynamics of /m/ and /p/ in tracheoesophageal speech

Searl, Jeff; Evitts, Paul M.

doi:10.1016/j.jvoice.2003.10.004

Cited by 13 publications

(12 citation statements)

References 42 publications

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“…For example, individuals may use "clear speech" strategies such as increasing phoneme duration, increasing the intensity of stop bursts, and using more discrete segmentation of speech units (ie, less evidence of co-articulation), among other changes. [13][14][15] Prior findings related to velopharyngeal function, 10 Po on obstruents, 9 and production of distinct voiced-voiceless contrasts for obstruents 9 in TE speech have been consistent with attempts at "clear speech" by these alaryngeal speakers.…”

Section: Introductionmentioning

confidence: 72%

“…Aerodynamically, it has been demonstrated in 3 recent investigations that proficient TE speakers do generate a markedly elevated Po. 8,10,18 In laryngeal speakers, increased Po on a stop consonant is generally associated with a stronger burst release. In order to contain this higher Po, and perhaps as part of a more generalized motor response to the "precise articulation" focus, greater contact pressures between articulators may be needed.…”

Section: Introductionmentioning

confidence: 99%

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Bilabial Contact Pressure and Oral Air Pressure during Tracheoesophageal Speech

Searl

2007

Ann Otol Rhinol Laryngol

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The increased CPsp and Po exhibited by TE speakers may reflect an attempt to overexaggerate articulation, although an alternate explanation related to neoglottal and oral aerodynamics must also be considered in future work. Subsequent studies evaluating the relationships between magnitude of articulatory contact pressure, phoneme intelligibility, and speaker's sense of effort should contribute to a better understanding of TE speech demands and may guide novel interventions to facilitate TE speech intelligibility.

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Section: Introductionmentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Bilabial Contact Pressure and Oral Air Pressure during Tracheoesophageal Speech

Searl

2007

Ann Otol Rhinol Laryngol

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“…The unchanged non-speech maximum contact pressure implied that TE speakers tended to articulate with more effort and that the effort was not generalized into other non-speech activities. A possible explanation for this finding is that TE speakers attempted to exaggerate the speaking manners and efforts in order to improve speech intelligibility [22]. If this adjustment of articulatory gestures were overly carried out, contact pressure could be increased, resulting in a greater PCP than in laryngeal speakers.…”

Section: Discussionmentioning

confidence: 99%

Articulatory Contact Pressure during Bilabial Plosive Production in Esophageal and Tracheoesophageal Speech

Tong

2018

Folia Phoniatr Logop

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Objectives: The present study investigated the articulatory contact pressure during the production of bilabial plosives by esophageal (ES), tracheoesophageal (TE), and laryngeal speakers. Methods: The peak contact pressure (PCP) during bilabial plosive production of /CVCVCVCVCV/ syllable strings of /p/ and /p^h/ was obtained from 10 ES, 10 TE, and 10 laryngeal speakers of Cantonese. PCP values were obtained by using a pressure transduction system (Iowa Oral Performance Instrument) during speech production. Results: The results showed that ES speakers exhibited a significantly greater PCP value than TE and laryngeal speakers, as revealed by cheek muscle compression force. In addition, the unaspirated bilabial plosive /p/ was associated with a greater PCP than its aspirated counterpart /p^h/. Conclusion: The current findings might support the hypothesis of over-exaggerated speech for better intelligibility among alaryngeal speakers. In addition, the increased oral muscular effort could be associated with a compensatory strategy for maintaining a high intraoral pressure or the unique air intake by ES speakers.

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“…No studies have reported the pressure value during the /k/ sound. However, with regard to the articulatory contact pressure between the tongue body and hard plate, Searl and Evitts [15] demonstrated a high pressure value (4.5 kPa) during the production of the stop consonant /t/. The high pressure value recorded at the center of the Ah-line, which is at the border between the soft and hard palates, can also reflect contact pressure between the tongue and soft palate.…”

Section: Discussionmentioning

confidence: 99%

Use of a Novel Device to Assess Intraoral and Intrapharyngeal Baropressure during Sound Production

Sakuma

Kurose

Okamoto

et al. 2016

Folia Phoniatr Logop

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Objective: We developed a novel device that simultaneously measures oral and intrapharyngeal baropressure. The transducer has the advantage that it can be placed in any region. We determined the effect of different speech samples on baropressure in these regions. Patients and Methods: Seven healthy individuals produced speech samples comprising vowels and consonants (e.g., /aka/, /apa/, and /ash/). Two transducers were installed into the experimental plate at the incisive papillae and center of the Ah-line; a third transducer was placed in the mid-pharyngeal cavity. During each task, 3 parameters were analyzed: peak pressure, mean pressure, and the temporal relationship between sound signals and pressure changes. Results: The mean pressure did not change during the production of a single vowel; however, the pressure transiently increased during the production of the speech samples, depending on the place of articulation. Moreover, the place of articulation affected the onset and peak timing of pressure changes. Conclusions: These findings indicate that pressure changes during the production of speech samples reflect the functional aspects of speech production. In particular, simultaneous pressure recordings at multiple locations would provide precise information about speech production, compared to pressure studies that used a single pressure transducer.

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Velopharyngeal aerodynamics of /m/ and /p/ in tracheoesophageal speech

Cited by 13 publications

References 42 publications

Bilabial Contact Pressure and Oral Air Pressure during Tracheoesophageal Speech

Bilabial Contact Pressure and Oral Air Pressure during Tracheoesophageal Speech

Articulatory Contact Pressure during Bilabial Plosive Production in Esophageal and Tracheoesophageal Speech

Use of a Novel Device to Assess Intraoral and Intrapharyngeal Baropressure during Sound Production

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