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While the fundamental frequency was not affected by non-smooth trachea walls, the phonation onset and offset pressures measured right below the glottis decreased with an increasing ripple depth of the trachea walls (up to 20% for 2\u2009mm ripples). This effect was independent from the type of glottis model and the presence of a supraglottal resonator. The pressures at the lower end of the trachea and the average volume velocities showed a tendency to decrease with an increasing ripple depth of the trachea walls but to a much smaller extent. These results indicate that the subglottal geometry and the flow conditions in the trachea can substantially affect the oscillation of synthetic vocal folds.<\/jats:p>","DOI":"10.1121\/10.0003362","type":"journal-article","created":{"date-parts":[[2021,1,21]],"date-time":"2021-01-21T14:02:22Z","timestamp":1611237742000},"page":"466-475","update-policy":"http:\/\/dx.doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":5,"title":["Effect of wavy trachea walls on the oscillation onset pressure of silicone vocal folds"],"prefix":"10.1121","volume":"149","author":[{"given":"Patrick","family":"H\u00e4sner","sequence":"first","affiliation":[{"name":"Insitute of Acoustics and Speech Communication, Technische Universit\u00e4t Dresden 1 , Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andreas","family":"Prescher","sequence":"additional","affiliation":[{"name":"Institute of Molecular and Cellular Anatomy, Aachen University Hospital 2 , Aachen, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter","family":"Birkholz","sequence":"additional","affiliation":[{"name":"Insitute of Acoustics and Speech Communication, Technische Universit\u00e4t Dresden 1 , Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"231","published-online":{"date-parts":[[2021,1,21]]},"reference":[{"issue":"6","key":"2023071706492948800_c1","doi-asserted-by":"publisher","first-page":"816.e21","DOI":"10.1016\/j.jvoice.2012.04.010","article-title":"Measurement of vocal folds elastic properties for continuum modeling","volume":"26","year":"2012","journal-title":"J. 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