Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Aerodynamic measurements of normal voice
Stockholms universitet, Humanistiska fakulteten, Institutionen för lingvistik.
1993 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Vocal fold vibration results from an alternating balance between subglottal air pressure that drives the vocal folds apart and muscular, elastic, and restoring forces that draw them together. The aim of the present thesis is to present quantitative data of normal vocal function using a noninvasive method. Measurements are made on the inverse filtered airflow waveform, of estimated average trans glottal pressure and glottal airflow, and of sound pressure for productions of syllable sequences. Statistical results are used to infer mechanisms that underlie differences across ( 1 ) normal, loud, and soft voice, (2) normal, high, and low pitch, and (3) between female and male voices. Interspeaker variation in group data and intra speaker variation across repeated recordings is also investigated. The results showed no significant female-male differences in pressure, suggesting that differences in other measures were not primarily due to differences in the respiratory systems . Most glottal waveforms showed a DC flow offset, suggesting an air leakage through a posterior glottal opening. Results suggested (indirectly) that the males in comparison with the females had significantly higher vocal fold closing velocities (maximum flow declination rate), larger vocal fold oscillations (AC flow), and relatively longer closed portions of the cycle (open quotient) in normal and loud voice. In soft voice, female and male waveforms were more alike. In comparison with normal voice, both females and males produced loud voice with significantly higher values of pressure, vocal fold closing velocity, and AC flow. Soft voice was produced with significantly lower values of these measures and increased DC flow. Correlation analyses indicated that several of the airflow measures were more directly related to vocal intensity than to pitch. Interspeaker variation was large, emphasizing the importance of large subject groups to capture normal variation. Intraspeaker variation across recording sessions was less than 2 standard deviations of the group means. The results should contribute to the understanding of normal voice function, and should be useful as norms in studies of voices disorders as well.

sted, utgiver, år, opplag, sider
Stockholm: Department of Linguistics, University of Stockholm , 1993. , s. 28
Serie
Phonetic Experimental Research at the Institute of Linguistics, University of Stockholm (PERILUS), ISSN 0282-6690 ; 16
Emneord [en]
Normal voice, inverse filtering, glottal airflow waveform, subglottal air pressure
HSV kategori
Forskningsprogram
fonetik
Identifikatorer
URN: urn:nbn:se:su:diva-40215ISBN: 91-7153-099-1 (tryckt)OAI: oai:DiVA.org:su-40215DiVA, id: diva2:322913
Merknad
Härtill 5 uppsatser. För att köpa boken skicka en beställning till exp@ling.su.se/ To order the book send an e-mail to exp@ling.su.seTilgjengelig fra: 2010-06-10 Laget: 2010-06-08 Sist oppdatert: 2018-01-12bibliografisk kontrollert

Open Access i DiVA

fulltekst(19511 kB)1509 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 19511 kBChecksum SHA-512
44ab6a616a9ee19432ad77d16a64b4f45964aaf9e0a2732e76990e01dde5941b463c36fb89665513e6773293b91687678b1b64d74a94a19566bac9585774f0a5
Type fulltextMimetype application/pdf

Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 1509 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

isbn
urn-nbn

Altmetric

isbn
urn-nbn
Totalt: 701 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf