KISEP RESEARCH PAPER AUDIOLOGY 청능재활 2005;1:59-66 ABSTRACT 한국어음소의주파수특성에관한연구 한림대학교대학원언어청각학협동과정, 1 한림대학교자연과학대학언어청각학부, 청각언어연구소 2 이주현 1 장현숙 2 정한진 1 A Study on Frequency Characteristics of Korean Phonemes The frequency characteristics of Korean phonemes were identified to predict a patient s speech recognition ability based on hearing configuration and to be usefully applied in a hearing-aid fitting process and in auditory training. 20 Koreans (10 males;10 females) produced seven Korean monophthongal vowels (/a/, /i/, /u/, /o/, //, //, /ε/) in context situations and 18 consonants (/k/, /k /, /k h /, /t/, /t /, /t h /, /p/, /p /, /p h /, /s/, /s /, /ts/, /ts /, /ts h /, /n/, /m/, /l/, /h/) in nonsense mono-syllabic words (CV) and disyllabic words which were a total of 252 words. Data was collected by using Computerized Speech Lab (CSL 4300B)and analyzed by using Praat 4.3.14. The results revealed that eight vowels had different,, and values. Formants of each vowel had significantly higher frequency values in females than in males. Some consonants such as stops, affricative, and fricative showed significant differences in frequency according to the vowels that followed. Unlike other consonants, nasal and liquid were not significantly affected by vowels that followed. The peak frequencies of consonants followed by vowels appeared as follows:600-3,500 Hz for /k/, /k /, /k h / of stops, 4,000 Hz or above for /t/, /t /, /t h / and 1,000-2,500 Hz for /p/, /p /, /p h /. With the frequency of fricative [s], [s ] were 4,000-6,000 Hz and affricative /ts/, /ts /, /ts h / were 3,500-5,000 Hz, their frequencies appearing to be higher than stops. Liquid and nasal showed lower than 500 Hz of frequency value. These findings suggest that the frequency band of the Korean phoneme can be usefully applied for evaluation and rehabilitation suitable for Koreans. KEY WORDS: INTRODUCTION - 교신저자 : 장현숙 59
60 AUDIOLOGY 청능재활 - Table 1. Two syllable word lists in test // // // // // // // // // // // // // // // // // // // // // // // // // MATERIALS AND METHODS 연구대상 연구자료및절차
JH Lee, et alg 61 - 통계분석 - 모음의포먼트분석 RESULTS Table 2. Distriution of means and standard deriations Hz for the test Korean non-syllale word formant,, fresuercies Mean SD Mean SD Mean SD 651 136 1156 077 2515 157 // 945 083 1582 141 2980 168 236 030 2183 136 3149 201 // 273 022 2864 109 3584 094 324 043 0595 140 2508 155 // 346 028 0810 106 2650 170 320 056 0587 132 2580 266 // 371 025 0700 072 2607 176 317 027 1218 155 2345 137 // 390 034 1752 191 2867 060 445 103 0845 149 2600 214 // 576 078 0961 087 3033 136 415 056 1848 099 2536 143 // 545 021 2436 095 3135 090
62 AUDIOLOGY 청능재활 - 자음의주파수분석 Table 3. Distriution of mean fresuercies Hz for the test Korean consonants and following vowels Hz // // // // // // // // 0252 0250 0244 0233 0244 0246 0258 // 0241 0246 0242 0239 0242 0242 0247 // 0289 0267 0297 0284 0302 0281 0272 // 0639 0678 1113 1531 1490 3043 3365 // 0660 0691 1128 1471 1518 2959 3286 // 0695 0756 1147 1516 1523 2979 3308 // 1234 1241 1162 1072 1302 1742 2473 // 1250 1238 1351 1212 1299 1621 2011 // 1270 1315 1203 1161 1295 1827 2331 // 0956 1090 0962 1176 1481 2144 3093 // 3727 3876 4575 4113 5161 4588 4741 // 3840 3814 4773 4780 4932 4481 4977 // 3876 3960 4508 4115 5195 4379 4838 // 3671 4637 4556 5386 5215 5260 5338 // 3435 4816 4821 5608 5485 5664 5591 // 3362 4360 4676 5208 5113 5204 5412 // 4044 4281 5691 6461 6336 6374 5049 // 4357 4510 6100 6641 6613 6767 5567
JH Lee, et alg 63 DISCUSSIOUS - Hz 250 500 1000 2000 3000 4000 5000 6000 7000 // // // // // // // // // // // 6393365 // 6603280 // 6953308 // 10722543 // 12122011 // 11612331 // 9563093 // 37275161 // 38174977 // 38765195 // 36715384 // 3435-5664 // 3362-5412 Fig. 1. Frequency ranges of Korean phonemes. // // 40446461 43516767
64 AUDIOLOGY 청능재활 -
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