The objective of the proposed research is to extend the acoustic theory of speech production to include the influences of subglottal resonances. The simplified source-filter theory will be refined to include the subglottal system and the influences of both the sub- and supraglottal systems on the voice source. An acoustic model based on this theory will be implemented on a computer. Experimental data from a number of speakers will be obtained and acoustic analysis of this data will be performed to verify and support the new model. Results of the acoustic analysis will be compared across gender and an attempt will be made to explain any differences in terms of anatomical differences. An understanding of subglottal coupling through acoustic modeling and analysis will be beneficial to studies of glottal characteristics, disordered speech, and speech synthesis and analysis systems. The potential influence of subglottal resonances in shaping the vowel categories in language will also be examined with a combination of acoustic analysis and perceptual tests.

National Institute of Health (NIH)
National Institute on Deafness and Other Communication Disorders (NIDCD)
Research Project (R01)
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Hearing Research Study Section (HAR)
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Good Samaritan Hosp & Medical Center(Prtlnd,OR)
United States
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Serrador, Jorge M; Lipsitz, Lewis A; Gopalakrishnan, Gosala S et al. (2009) Loss of otolith function with age is associated with increased postural sway measures. Neurosci Lett 465:10-5
Serrador, Jorge M; Schlegel, Todd T; Black, F Owen et al. (2009) Vestibular effects on cerebral blood flow. BMC Neurosci 10:119
Black, F O; Gianna-Poulin, C; Pesznecker, S C (2001) Recovery from vestibular ototoxicity. Otol Neurotol 22:662-71
Wade, S W; Halmagyi, G M; Black, F O et al. (1999) Time constant of nystagmus slow-phase velocity to yaw-axis rotation as a function of the severity of unilateral caloric paresis. Am J Otol 20:471-8
Black, F O; Paloski, W H; Reschke, M F et al. (1999) Disruption of postural readaptation by inertial stimuli following space flight. J Vestib Res 9:369-78
Merfeld, D M; Black, F O; Wade, S (1998) Clinical use of three-dimensional video measurements of eye movements. Otolaryngol Head Neck Surg 118:S35-8
Black, F O; Paloski, W H (1998) Computerized dynamic posturography: What have we learned from space? Otolaryngol Head Neck Surg 118:S45-51
Black, F O; Wade, S W; Nashner, L M (1996) What is the minimal vestibular function required for compensation? Am J Otol 17:401-9
Black, F O; Brackmann, D E; Hitselberger, W E et al. (1995) Preservation of auditory and vestibular function after surgical removal of bilateral vestibular schwannomas in a patient with neurofibromatosis type 2. Am J Otol 16:431-43
Black, F O; Pesznecker, S; Norton, T et al. (1992) Surgical management of perilymphatic fistulas: a Portland experience. Am J Otol 13:254-62

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