{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T02:44:35Z","timestamp":1790304275005,"version":"4.1.0"},"reference-count":28,"publisher":"Acoustical Society of America (ASA)","issue":"2","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2017,2,1]]},"abstract":"<jats:p>Hypernasality is seen in cleft lip and palate patients who had undergone repair surgery as a consequence of velopharyngeal insufficiency. Hypernasality has been studied by evaluation of perturbation, noise measures, and cepstral analysis of speech. In this study, feature extraction and analysis were performed during running speech using six different sentences. Jitter, shimmer, Mel frequency cepstral coefficients, bionic wavelet transform entropy, and bionic wavelet transform energy were calculated. Support vector machines were employed for classification of data to normal or hypernasal. Finally, results of the automatic classification were compared with true labels to find accuracy, sensitivity, and specificity. Accuracy was higher when Mel frequency cepstral coefficients were combined with bionic wavelet transform energy feature. In the best case, accuracy of 85% with sensitivity of 82% and specificity of 85% was obtained. Results prove that acoustic analysis is a reliable method to find hypernasality in cleft lip and palate patients.<\/jats:p>","DOI":"10.1121\/1.4976056","type":"journal-article","created":{"date-parts":[[2017,2,17]],"date-time":"2017-02-17T15:03:32Z","timestamp":1487343812000},"page":"929-935","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":50,"title":["Automatic identification of hypernasality in normal and cleft lip and palate patients with acoustic analysis of speech"],"prefix":"10.1121","volume":"141","author":[{"given":"Marzieh","family":"Golabbakhsh","sequence":"first","affiliation":[{"name":"Isfahan University of Medical Sciences Medical Image and Signal Processing Research Center, , Hezarjarib Street, 81745-319, Isfahan, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fatemeh","family":"Abnavi","sequence":"additional","affiliation":[{"name":"Isfahan University of Medical Sciences Craniofacial Anomalies and Cleft Palate Research Center, , Hezarjarib Street, 81745-319, Isfahan, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mina","family":"Kadkhodaei Elyaderani","sequence":"additional","affiliation":[{"name":"Isfahan University of Medical Sciences Medical Image and Signal Processing Research Center, , Hezarjarib Street, 81745-319, Isfahan, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fatemeh","family":"Derakhshandeh","sequence":"additional","affiliation":[{"name":"Isfahan University of Medical Sciences Craniofacial Anomalies and Cleft Palate Research Center, , Hezarjarib Street, 81745-319, Isfahan, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fatemeh","family":"Khanlar","sequence":"additional","affiliation":[{"name":"Isfahan University of Medical Sciences Craniofacial Anomalies and Cleft Palate Research Center, , Hezarjarib Street, 81745-319, Isfahan, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Panying","family":"Rong","sequence":"additional","affiliation":[{"name":"MGH Institute of Health Professions Department of Communication Sciences and Disorders, , 36 First Avenue, Boston, Massachusetts 02129, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David P.","family":"Kuehn","sequence":"additional","affiliation":[{"name":"University of Illinois at Urbana-Champaign Department of Speech and Hearing Science, , 901 South Sixth Street, Champaign, Illinois 61820, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"231","published-online":{"date-parts":[[2017,2,17]]},"reference":[{"issue":"2B","key":"2023080500125630200_c1","doi-asserted-by":"publisher","first-page":"541","DOI":"10.1121\/1.1912385","article-title":"Sweep-tone measurements of vocal-tract characteristics","volume":"49","year":"1971","journal-title":"J. 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