Digital acoustic analysis of five vowels in maxillectomy patients

The aim of the study was to characterize the acoustics of vowel articulation in maxillectomy patients. Digital acoustic analysis of five vowels, /a/, /e/, /i/, /o/ and /u/, was performed on 12 male maxillectomy patients and 12 normal male individuals. A simple set of acoustic descriptions called the...

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Vydané v:	Journal of oral rehabilitation Ročník 29; číslo 7; s. 649 - 656
Hlavní autori:	Sumita, Y. I., Ozawa, S., Mukohyama, H., Ueno, T., Ohyama, T., Taniguchi, H.
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Oxford UK Blackwell Science Ltd 01.07.2002
Predmet:	Acoustics Adult Aged digital acoustic analysis Forecasting formant Humans linear predictive coding Male Maxilla - surgery maxillectomy Middle Aged Phonetics Signal Processing, Computer-Assisted Sound Spectrography Speech - physiology Speech Intelligibility Statistics, Nonparametric vowel
ISSN:	0305-182X, 1365-2842
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Abstract	The aim of the study was to characterize the acoustics of vowel articulation in maxillectomy patients. Digital acoustic analysis of five vowels, /a/, /e/, /i/, /o/ and /u/, was performed on 12 male maxillectomy patients and 12 normal male individuals. A simple set of acoustic descriptions called the first and second formant frequencies, F1 and F2, were employed and calculated based on linear predictive coding. The maxillectomy patients had a significantly lower F2 for all five vowels and a significantly higher F1 for only /i/ vowel. From the data plotted on an F1–F2 plane in each subject, we determined the F1 range and the F2 range, which are the differences between the minimum and the maximum frequencies among the five vowels. The maxillectomy patients had a significantly narrower F2 range than the normal controls. In contrast, there was no significant difference in the F1 range. These results suggest that the maxillectomy patients had difficulty in controlling F2 properly. In addition, the speech intelligibility (SI) test was performed to verify the results of this new frequency range method. A high correlation between the F2 range and the score of SI test was demonstrated, suggesting that the F2 range is effective in evaluating the speech ability of maxillectomy patients.
AbstractList	The aim of the study was to characterize the acoustics of vowel articulation in maxillectomy patients. Digital acoustic analysis of five vowels, /a/, /e/, /i/, /o/ and /u/, was performed on 12 male maxillectomy patients and 12 normal male individuals. A simple set of acoustic descriptions called the first and second formant frequencies, F1 and F2, were employed and calculated based on linear predictive coding. The maxillectomy patients had a significantly lower F2 for all five vowels and a significantly higher F1 for only /i/ vowel. From the data plotted on an F1–F2 plane in each subject, we determined the F1 range and the F2 range, which are the differences between the minimum and the maximum frequencies among the five vowels. The maxillectomy patients had a significantly narrower F2 range than the normal controls. In contrast, there was no significant difference in the F1 range. These results suggest that the maxillectomy patients had difficulty in controlling F2 properly. In addition, the speech intelligibility (SI) test was performed to verify the results of this new frequency range method. A high correlation between the F2 range and the score of SI test was demonstrated, suggesting that the F2 range is effective in evaluating the speech ability of maxillectomy patients. The aim of the study was to characterize the acoustics of vowel articulation in maxillectomy patients. Digital acoustic analysis of five vowels, /a/, /e/, /i/, /o/ and /u/, was performed on 12 male maxillectomy patients and 12 normal male individuals. A simple set of acoustic descriptions called the first and second formant frequencies, F1 and F2, were employed and calculated based on linear predictive coding. The maxillectomy patients had a significantly lower F2 for all five vowels and a significantly higher F1 for only /i/ vowel. From the data plotted on an F1-F2 plane in each subject, we determined the F1 range and the F2 range, which are the differences between the minimum and the maximum frequencies among the five vowels. The maxillectomy patients had a significantly narrower F2 range than the normal controls. In contrast, there was no significant difference in the F1 range. These results suggest that the maxillectomy patients had difficulty in controlling F2 properly. In addition, the speech intelligibility (SI) test was performed to verify the results of this new frequency range method. A high correlation between the F2 range and the score of SI test was demonstrated, suggesting that the F2 range is effective in evaluating the speech ability of maxillectomy patients.The aim of the study was to characterize the acoustics of vowel articulation in maxillectomy patients. Digital acoustic analysis of five vowels, /a/, /e/, /i/, /o/ and /u/, was performed on 12 male maxillectomy patients and 12 normal male individuals. A simple set of acoustic descriptions called the first and second formant frequencies, F1 and F2, were employed and calculated based on linear predictive coding. The maxillectomy patients had a significantly lower F2 for all five vowels and a significantly higher F1 for only /i/ vowel. From the data plotted on an F1-F2 plane in each subject, we determined the F1 range and the F2 range, which are the differences between the minimum and the maximum frequencies among the five vowels. The maxillectomy patients had a significantly narrower F2 range than the normal controls. In contrast, there was no significant difference in the F1 range. These results suggest that the maxillectomy patients had difficulty in controlling F2 properly. In addition, the speech intelligibility (SI) test was performed to verify the results of this new frequency range method. A high correlation between the F2 range and the score of SI test was demonstrated, suggesting that the F2 range is effective in evaluating the speech ability of maxillectomy patients.
Author	Ueno, T. Sumita, Y. I. Ozawa, S. Mukohyama, H. Taniguchi, H. Ohyama, T.
Author_xml	– sequence: 1 givenname: Y. I. surname: Sumita fullname: Sumita, Y. I. organization: Department of Maxillofacial Prosthetics, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan – sequence: 2 givenname: S. surname: Ozawa fullname: Ozawa, S. organization: Department of Maxillofacial Prosthetics, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan – sequence: 3 givenname: H. surname: Mukohyama fullname: Mukohyama, H. organization: Department of Maxillofacial Prosthetics, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan – sequence: 4 givenname: T. surname: Ueno fullname: Ueno, T. organization: Department of Sports Medicine/Dentistry, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan – sequence: 5 givenname: T. surname: Ohyama fullname: Ohyama, T. organization: Department of Removable Prosthodontics, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan – sequence: 6 givenname: H. surname: Taniguchi fullname: Taniguchi, H. organization: Department of Maxillofacial Prosthetics, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
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Cites_doi	10.2307/522229 10.1016/0022-3913(89)90180-7 10.1046/j.1365-2842.2000.00537.x 10.1121/1.1908024 10.1016/S0022-3913(98)70243-4 10.1121/1.392393 10.1121/1.398894 10.1046/j.1365-2842.1998.00238.x 10.1111/j.1365-2842.1990.tb01427.x 10.1016/0022-3913(72)90111-4 10.2186/jjps.38.908 10.1016/0022-3913(79)90017-9 10.1177/002383098302600103 10.1016/0022-3913(74)90104-8 10.1121/1.385343
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References	BENNETT, S. (1981) Vowel formant frequency characteristics of preadolescent males and females. Journal of the Acoustic Society of America, 69 , 231. FOX, R.A. (1983) Perceptual structure of monophthongs and diphthongs in English. Language and Speech, 26 , 21. RAKERD, B. & VERBRUGGE, R.R. (1985) Linguistic and acoustic correlates of the perceptual structure found in an individual differences scaling study of vowels. Journal of the Acoustical Society of America, 77 , 296. UMINO, S., MASUDA, G., ONO, S. & FUJITA, K. (1998) Speech intelligibility following maxillectomy with and without a prosthesis: an analysis of 54 cases. Journal of Oral Rehabilitation, 25 , 153. YOSHIDA, H., FURUYA, Y., SHIMODAIRA, K., KANAZAWA, T., KATAOKA, R. & TAKAHASHI, K. (2000) Spectral characteristics of hypernasality in maxillectomy patients. Journal of Oral Rehabilitation, 27 , 723.DOI: 10.1046/j.1365-2842.2000.00537.x MAHANNA, G.K., BEUKELMAN, D.R., MARSHALL, J.A., GEABLER, C.A. & SULLIVAN, M. (1998) Obturator prostheses after cancer surgery: an approach to speech outcome assessment. Journal of Prosthetic Dentistry, 79 , 310. ORAL, K., ARAMANY, M.A. & MCWILLIAMS, B.J. (1979) Speech intelligibility with the buccal flange obturator. Journal of Prosthetic Dentistry, 41 , 323. DELATTRE, P.C., LIBERMAN, A.M. & COOPER, F.S. (1955) Acoustic loci and transitional cues for consonants. Journal of the Acoustical Society of America, 27 , 769. KLATT, D.H. & KLATT, L.C. (1990) Analysis, synthesis, and perception of voice quality variations among female and male talkers. Journal of the Acoustical Society of America, 87 , 820. TOBEY, E.A. & LINCKS, J. (1989) Acoustic analyses of speech changes after maxillectomy and prosthodontic management. Journal of Prosthetic Dentistry, 62 , 449. KIPFMUELLER, L.J. & LANG, B.R. (1972) Presurgical maxillary prosthetic: an analysis of speech intelligibility. Journal of Prosthetic Dentistry, 28 , 620. OHYAMA, T., ISHIBASHI, K., OHASHI, Y et al. (1995) A nationwide survey to establish diagnostic and treatment system of the maxillofacial prosthetic patients in Japan. Journal of the Japanese Academy of Maxillofacial Prosthetics, 18 , 43. YOSHIDA, H., MICHI, K. & OHSAWA, T. (1990) Prosthetic treatment for speech disorders due to surgically acquired maxillary defects. Journal of Oral Rehabilitation, 17 , 565. MAJID, A.A., WEINBERG. B. & CHALIAN, V.A. (1974) Speech intelligibility following prosthetic obturation of surgically acquired maxillary defects. Journal of Prosthetic Dentistry, 32 , 87. YOSHIDA, M., SEINO, K., KAWADA, T., ORIKASA, F., SAWAFUJI, F., TADA, K., SATODATE, T., FURUKAWA, K. & ISHIBASHI, K. (1994) Acoustical analyses of maxillary prosthetic patients with the aid of a digital signal processor. Journal of the Japan Prosthodontic Society, 38 , 908. 1989; 62 1955; 27 1990; 87 1974; 32 2000; 27 1990; 17 1981; 69 1983 1994; 38 1992 1995; 18 1985; 77 1979; 41 1983; 26 1948 1972; 28 1967 1998; 25 1998; 79 e_1_2_7_5_2 e_1_2_7_4_2 e_1_2_7_3_2 e_1_2_7_2_2 e_1_2_7_9_2 e_1_2_7_8_2 e_1_2_7_7_2 e_1_2_7_6_2 e_1_2_7_19_2 e_1_2_7_18_2 e_1_2_7_17_2 e_1_2_7_16_2 e_1_2_7_15_2 e_1_2_7_14_2 e_1_2_7_12_2 e_1_2_7_11_2 e_1_2_7_10_2 OHYAMA T. (e_1_2_7_13_2) 1995; 18 e_1_2_7_20_2
References_xml	– reference: DELATTRE, P.C., LIBERMAN, A.M. & COOPER, F.S. (1955) Acoustic loci and transitional cues for consonants. Journal of the Acoustical Society of America, 27 , 769. – reference: MAHANNA, G.K., BEUKELMAN, D.R., MARSHALL, J.A., GEABLER, C.A. & SULLIVAN, M. (1998) Obturator prostheses after cancer surgery: an approach to speech outcome assessment. Journal of Prosthetic Dentistry, 79 , 310. – reference: YOSHIDA, H., MICHI, K. & OHSAWA, T. (1990) Prosthetic treatment for speech disorders due to surgically acquired maxillary defects. Journal of Oral Rehabilitation, 17 , 565. – reference: YOSHIDA, H., FURUYA, Y., SHIMODAIRA, K., KANAZAWA, T., KATAOKA, R. & TAKAHASHI, K. (2000) Spectral characteristics of hypernasality in maxillectomy patients. Journal of Oral Rehabilitation, 27 , 723.DOI: 10.1046/j.1365-2842.2000.00537.x – reference: MAJID, A.A., WEINBERG. B. & CHALIAN, V.A. (1974) Speech intelligibility following prosthetic obturation of surgically acquired maxillary defects. Journal of Prosthetic Dentistry, 32 , 87. – reference: OHYAMA, T., ISHIBASHI, K., OHASHI, Y et al. (1995) A nationwide survey to establish diagnostic and treatment system of the maxillofacial prosthetic patients in Japan. Journal of the Japanese Academy of Maxillofacial Prosthetics, 18 , 43. – reference: KLATT, D.H. & KLATT, L.C. (1990) Analysis, synthesis, and perception of voice quality variations among female and male talkers. Journal of the Acoustical Society of America, 87 , 820. – reference: TOBEY, E.A. & LINCKS, J. (1989) Acoustic analyses of speech changes after maxillectomy and prosthodontic management. Journal of Prosthetic Dentistry, 62 , 449. – reference: BENNETT, S. (1981) Vowel formant frequency characteristics of preadolescent males and females. Journal of the Acoustic Society of America, 69 , 231. – reference: KIPFMUELLER, L.J. & LANG, B.R. (1972) Presurgical maxillary prosthetic: an analysis of speech intelligibility. Journal of Prosthetic Dentistry, 28 , 620. – reference: FOX, R.A. (1983) Perceptual structure of monophthongs and diphthongs in English. Language and Speech, 26 , 21. – reference: YOSHIDA, M., SEINO, K., KAWADA, T., ORIKASA, F., SAWAFUJI, F., TADA, K., SATODATE, T., FURUKAWA, K. & ISHIBASHI, K. (1994) Acoustical analyses of maxillary prosthetic patients with the aid of a digital signal processor. Journal of the Japan Prosthodontic Society, 38 , 908. – reference: RAKERD, B. & VERBRUGGE, R.R. (1985) Linguistic and acoustic correlates of the perceptual structure found in an individual differences scaling study of vowels. Journal of the Acoustical Society of America, 77 , 296. – reference: UMINO, S., MASUDA, G., ONO, S. & FUJITA, K. (1998) Speech intelligibility following maxillectomy with and without a prosthesis: an analysis of 54 cases. Journal of Oral Rehabilitation, 25 , 153. – reference: ORAL, K., ARAMANY, M.A. & MCWILLIAMS, B.J. (1979) Speech intelligibility with the buccal flange obturator. Journal of Prosthetic Dentistry, 41 , 323. – year: 1983 – start-page: 360 year: 1967 – volume: 26 start-page: 21 year: 1983 article-title: Perceptual structure of monophthongs and diphthongs in English publication-title: Language and Speech – volume: 87 start-page: 820 year: 1990 article-title: Analysis, synthesis, and perception of voice quality variations among female and male talkers publication-title: Journal of the Acoustical Society of America – volume: 25 start-page: 153 year: 1998 article-title: Speech intelligibility following maxillectomy with and without a prosthesis: an analysis of 54 cases publication-title: Journal of Oral Rehabilitation – volume: 17 start-page: 565 year: 1990 article-title: Prosthetic treatment for speech disorders due to surgically acquired maxillary defects publication-title: Journal of Oral Rehabilitation – volume: 79 start-page: 310 year: 1998 article-title: Obturator prostheses after cancer surgery: an approach to speech outcome assessment publication-title: Journal of Prosthetic Dentistry – volume: 38 start-page: 908 year: 1994 article-title: Acoustical analyses of maxillary prosthetic patients with the aid of a digital signal processor publication-title: Journal of the Japan Prosthodontic Society – year: 1948 – volume: 28 start-page: 620 year: 1972 article-title: Presurgical maxillary prosthetic: an analysis of speech intelligibility publication-title: Journal of Prosthetic Dentistry – volume: 69 start-page: 231 year: 1981 article-title: Vowel formant frequency characteristics of preadolescent males and females publication-title: Journal of the Acoustic Society of America – volume: 27 start-page: 769 year: 1955 article-title: Acoustic loci and transitional cues for consonants publication-title: Journal of the Acoustical Society of America – volume: 27 start-page: 723 year: 2000 article-title: Spectral characteristics of hypernasality in maxillectomy patients publication-title: Journal of Oral Rehabilitation – year: 1992 – volume: 18 start-page: 43 year: 1995 article-title: A nationwide survey to establish diagnostic and treatment system of the maxillofacial prosthetic patients in Japan publication-title: Journal of the Japanese Academy of Maxillofacial Prosthetics – volume: 41 start-page: 323 year: 1979 article-title: Speech intelligibility with the buccal flange obturator publication-title: Journal of Prosthetic Dentistry – volume: 77 start-page: 296 year: 1985 article-title: Linguistic and acoustic correlates of the perceptual structure found in an individual differences scaling study of vowels publication-title: Journal of the Acoustical Society of America – volume: 62 start-page: 449 year: 1989 article-title: Acoustic analyses of speech changes after maxillectomy and prosthodontic management publication-title: Journal of Prosthetic Dentistry – volume: 32 start-page: 87 year: 1974 article-title: Speech intelligibility following prosthetic obturation of surgically acquired maxillary defects publication-title: Journal of Prosthetic Dentistry – ident: e_1_2_7_2_2 – ident: e_1_2_7_6_2 doi: 10.2307/522229 – ident: e_1_2_7_16_2 doi: 10.1016/0022-3913(89)90180-7 – ident: e_1_2_7_20_2 doi: 10.1046/j.1365-2842.2000.00537.x – ident: e_1_2_7_4_2 doi: 10.1121/1.1908024 – ident: e_1_2_7_10_2 doi: 10.1016/S0022-3913(98)70243-4 – ident: e_1_2_7_15_2 doi: 10.1121/1.392393 – ident: e_1_2_7_9_2 doi: 10.1121/1.398894 – ident: e_1_2_7_17_2 doi: 10.1046/j.1365-2842.1998.00238.x – ident: e_1_2_7_18_2 doi: 10.1111/j.1365-2842.1990.tb01427.x – ident: e_1_2_7_8_2 doi: 10.1016/0022-3913(72)90111-4 – ident: e_1_2_7_19_2 doi: 10.2186/jjps.38.908 – volume: 18 start-page: 43 year: 1995 ident: e_1_2_7_13_2 article-title: A nationwide survey to establish diagnostic and treatment system of the maxillofacial prosthetic patients in Japan publication-title: Journal of the Japanese Academy of Maxillofacial Prosthetics – ident: e_1_2_7_14_2 doi: 10.1016/0022-3913(79)90017-9 – ident: e_1_2_7_12_2 – ident: e_1_2_7_7_2 – ident: e_1_2_7_5_2 doi: 10.1177/002383098302600103 – ident: e_1_2_7_11_2 doi: 10.1016/0022-3913(74)90104-8 – ident: e_1_2_7_3_2 doi: 10.1121/1.385343
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SubjectTerms	Acoustics Adult Aged digital acoustic analysis Forecasting formant Humans linear predictive coding Male Maxilla - surgery maxillectomy Middle Aged Phonetics Signal Processing, Computer-Assisted Sound Spectrography Speech - physiology Speech Intelligibility Statistics, Nonparametric vowel
Title	Digital acoustic analysis of five vowels in maxillectomy patients
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