TABLE V.
Mean values and standard deviations for duration, F1, and F2 for native English speakers, Spanish accented speakers, Korean accented speakers, and Mixed accent speakers.
| Speaker Group | Duration | F1 | F2 | ||||
|---|---|---|---|---|---|---|---|
| Vowel | M | SD | M | SD | M | SD | |
| English | /i/ | 193.63 | 33.04 | 347.39 | 49.14 | 2582.53 | 234.50 |
| /ɪ/ | 157.25 | 26.64 | 542.76 | 128.77 | 2056.82 | 159.30 | |
| /e/ | 221.22 | 40.55 | 451.36 | 101.22 | 2458.94 | 162.19 | |
| /æ/ | 225.35 | 31.05 | 849.90 | 204.44 | 1220.24 | 70.09 | |
| /ʌ/ | 181.09 | 29.78 | 691.22 | 189.40 | 1853.79 | 109.96 | |
| /a/ | 237.01 | 46.18 | 761.70 | 203.36 | 1410.58 | 133.74 | |
| Spanish | /i/ | 178.19 | 36.64 | 356.76 | 53.84 | 2433.35 | 229.45 |
| /ɪ/ | 169.32 | 42.08 | 376.34 | 46.34 | 2426.63 | 301.20 | |
| /e/ | 240.48 | 42.46 | 441.35 | 55.30 | 2374.18 | 267.31 | |
| /æ/ | 215.15 | 35.53 | 784.88 | 146.43 | 1312.00 | 142.82 | |
| /ʌ/ | 185.12 | 41.75 | 633.13 | 84.12 | 1646.25 | 144.18 | |
| /a/ | 195.91 | 33.97 | 673.43 | 87.70 | 1346.96 | 197.82 | |
| Korean | /i/ | 186.70 | 43.67 | 362.43 | 39.73 | 2348.90 | 255.40 |
| /ɪ/ | 146.68 | 31.04 | 416.46 | 62.79 | 2273.40 | 270.14 | |
| /e/ | 214.89 | 39.22 | 481.64 | 45.30 | 2254.96 | 300.99 | |
| /æ/ | 185.85 | 56.66 | 741.90 | 122.01 | 1228.12 | 83.17 | |
| /ʌ/ | 157.05 | 23.75 | 706.32 | 104.46 | 1808.19 | 181.60 | |
| /a/ | 191.27 | 47.72 | 719.65 | 93.22 | 1250.45 | 154.13 | |
| Mixed | /i/ | 203.46 | 27.07 | 328.90 | 65.07 | 2420.23 | 253.37 |
| /ɪ/ | 150.13 | 28.67 | 449.22 | 55.92 | 2116.54 | 228.26 | |
| /e/ | 201.27 | 36.47 | 451.17 | 55.55 | 2298.02 | 225.05 | |
| /æ/ | 174.62 | 28.75 | 757.31 | 77.18 | 1192.04 | 126.84 | |
| /ʌ/ | 182.38 | 28.09 | 722.18 | 86.74 | 1716.87 | 133.12 | |
| /a/ | 176.83 | 26.85 | 691.30 | 84.15 | 1339.22 | 145.78 | |