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Belting, on the other hand, uses vowels that are consistently modified toward the megaphone (trumpet-like) mouth shape. Both the fundamental and the second harmonic are then kept below the first formant. The vocal tract shapes provide collective reinforcement to multiple harmonics in the form of inertive supraglottal reactance and compliant subglottal reactance. Examples of lip openings from four well-known artists are used to infer vocal tract area functions and the corresponding reactances.<\/jats:p>","DOI":"10.1121\/1.3160296","type":"journal-article","created":{"date-parts":[[2009,9,11]],"date-time":"2009-09-11T14:06:10Z","timestamp":1252677970000},"page":"1530-1540","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":66,"title":["Modeling source-filter interaction in belting and high-pitched operatic male singing"],"prefix":"10.1121","volume":"126","author":[{"given":"Ingo R.","family":"Titze","sequence":"first","affiliation":[{"name":"The Denver Center for the Performing Arts National Center for Voice and Speech, , Denver, Colorado 80204 and Department of Communication Sciences and Disorders, , Iowa City, Iowa 52242"},{"name":"The University of Iowa National Center for Voice and Speech, , Denver, Colorado 80204 and Department of Communication Sciences and Disorders, , Iowa City, Iowa 52242"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Albert S.","family":"Worley","sequence":"additional","affiliation":[{"name":"The Denver Center for the Performing Arts National Center for Voice and Speech, , Denver, Colorado 80204"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"231","published-online":{"date-parts":[[2009,9,9]]},"reference":[{"key":"2023080106092676100_c1","doi-asserted-by":"publisher","first-page":"1200","DOI":"10.1121\/1.414601","article-title":"Trumpet sound simulation using a two-dimensional lip vibration model","volume":"99","year":"1996","journal-title":"J. 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