{"id":{"repo_id":"mo-state","oai_identifier":"oai:bearworks.missouristate.edu:theses-1434"},"canonical_url":"https://search.dev.ndltd.org/etd/mo-state/oai:bearworks.missouristate.edu:theses-1434","repository":{"repo_id":"mo-state","name":"Missouri State University","base_url":"https://bearworks.missouristate.edu/do/oai/"},"display":{"title":"Possible Effects of Voice Fundamental Frequency, Gender and Tongue Position on Phonation Threshold Pressure","abstract":"Phonation threshold pressure (Pth) refers to the minimum lung pressure required to initiate phonation. Pth was studied as a function of voice fundamental frequency (f₀), gender, and tongue position. Ten adult native speakers of American English (five men and five women) with no known history of respiratory, laryngeal, speech and hearing problems served as subjects. Subjects were asked to repeat a series just audible /pa/ and /pi/ syllables at five different f₀ levels.The lowest f₀ level was 15% below the subjects conversational f₀, and the highest f₀ level was 45% above the conversational f₀. Pth was measured indirectly as intraoral air pressure during the occlusion phase of the consonant /p/. Pth did not increase systematically for the f₀ levels used in this study. No gender related differences in Pth were found. Pth was not statistically different for the lower tongue position in /pa/ and the higher tongue position in /pi/. Small differences in Pth may have been obscured due to inter-and intrasubject variability. Additional studies with larger subject pools may reveal differences in Pth across tasks.","abstract_html":"Phonation threshold pressure (Pth) refers to the minimum lung pressure required to initiate phonation. Pth was studied as a function of voice fundamental frequency (f₀), gender, and tongue position. Ten adult native speakers of American English (five men and five women) with no known history of respiratory, laryngeal, speech and hearing problems served as subjects. Subjects were asked to repeat a series just audible /pa/ and /pi/ syllables at five different f₀ levels.The lowest f₀ level was 15% below the subjects conversational f₀, and the highest f₀ level was 45% above the conversational f₀. Pth was measured indirectly as intraoral air pressure during the occlusion phase of the consonant /p/. Pth did not increase systematically for the f₀ levels used in this study. No gender related differences in Pth were found. Pth was not statistically different for the lower tongue position in /pa/ and the higher tongue position in /pi/. Small differences in Pth may have been obscured due to inter-and intrasubject variability. Additional studies with larger subject pools may reveal differences in Pth across tasks.","abstract_has_math":false,"creators":["Joshi, Smita S."],"institution":null,"degree_name":"Master of Science in Communication Sciences and Disorders","degree_level":"Masters","degree_discipline":"Communication Sciences and Disorders","degree_department":null,"school":null,"contributors":["Ronald Netsell"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1997,"date_issued":"1997-07-01T07:00:00Z","date_published":"1997-07-01T07:00:00Z","updated_at":"2026-07-24T03:15:29Z","subjects":["Communication Sciences and Disorders"],"languages":[],"rights":["© Smita S Joshi"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://bearworks.missouristate.edu/theses/433","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Ronald Netsell"]},{"key":"dc:creator","label":"Author","values":["Joshi, Smita S."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Communication Sciences and Disorders"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science in Communication Sciences and Disorders"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Communication Sciences and Disorders"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["© Smita S Joshi"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://bearworks.missouristate.edu/theses/433"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Phonation threshold pressure (Pth) refers to the minimum lung pressure required to initiate phonation. Pth was studied as a function of voice fundamental frequency (f₀), gender, and tongue position. Ten adult native speakers of American English (five men and five women) with no known history of respiratory, laryngeal, speech and hearing problems served as subjects. Subjects were asked to repeat a series just audible /pa/ and /pi/ syllables at five different f₀ levels.The lowest f₀ level was 15% below the subjects conversational f₀, and the highest f₀ level was 45% above the conversational f₀. Pth was measured indirectly as intraoral air pressure during the occlusion phase of the consonant /p/. Pth did not increase systematically for the f₀ levels used in this study. No gender related differences in Pth were found. Pth was not statistically different for the lower tongue position in /pa/ and the higher tongue position in /pi/. Small differences in Pth may have been obscured due to inter-and intrasubject variability. Additional studies with larger subject pools may reveal differences in Pth across tasks."]},{"key":"dc:title","label":"Title","values":["Possible Effects of Voice Fundamental Frequency, Gender and Tongue Position on Phonation Threshold Pressure"]}]}],"canonical_facts":{"dc:contributor":["Ronald Netsell"],"dc:creator":["Joshi, Smita S."],"dc:description.abstract":["Phonation threshold pressure (Pth) refers to the minimum lung pressure required to initiate phonation. Pth was studied as a function of voice fundamental frequency (f₀), gender, and tongue position. Ten adult native speakers of American English (five men and five women) with no known history of respiratory, laryngeal, speech and hearing problems served as subjects. Subjects were asked to repeat a series just audible /pa/ and /pi/ syllables at five different f₀ levels.The lowest f₀ level was 15% below the subjects conversational f₀, and the highest f₀ level was 45% above the conversational f₀. Pth was measured indirectly as intraoral air pressure during the occlusion phase of the consonant /p/. Pth did not increase systematically for the f₀ levels used in this study. No gender related differences in Pth were found. Pth was not statistically different for the lower tongue position in /pa/ and the higher tongue position in /pi/. Small differences in Pth may have been obscured due to inter-and intrasubject variability. Additional studies with larger subject pools may reveal differences in Pth across tasks."],"dc:identifier":["https://bearworks.missouristate.edu/theses/433"],"dc:rights":["© Smita S Joshi"],"dc:subject":["Communication Sciences and Disorders"],"dc:title":["Possible Effects of Voice Fundamental Frequency, Gender and Tongue Position on Phonation Threshold Pressure"],"thesis:degree_discipline":["Communication Sciences and Disorders"],"thesis:degree_level":["Masters"],"thesis:degree_name":["Master of Science in Communication Sciences and Disorders"]},"updated_at":"2026-07-24T03:15:29Z"}