Table 3.
Intelligibility scores across the 18 sentences used for the vowel space measurements, vowel space area, vowel space dispersion, F1 range, F2 range, within category clustering, vowel space dispersion/within-category clustering, F2–F2 distance for /i/ and /a/ for each individual talker. Asterisks mark the two talkers (F7 and M2) whose vowel space measurements are shown in Fig. 2, and whose speech samples can be heard from the Elsevier web site (http://www.elsevier.nl/locate/specom)
| Talker | Intelligibility (18 sentences) | Vowel space area (mel2) | Vowel space dispersion (mels) | F1 range (mels) | F2 range (mels) | Category clustering (mels) clustering | Vowel space dispersion/ category | F2–F1 /i/ (mels) | F2–F1 /a/ (mels) |
|---|---|---|---|---|---|---|---|---|---|
| F1 | 93.3 | 82747.76 | 349.23 | 649.72 | 802.95 | 66.899 | 5.220 | 1426.44 | 311.19 |
| F2 | 92.8 | 40844.95 | 301.91 | 569.19 | 746.18 | 75.077 | 4.021 | 1396.64 | 339.11 |
| F3 | 91.1 | 81688.80 | 327.33 | 518.35 | 1168.76 | 90.939 | 3.599 | 1314.26 | 412.39 |
| F4 | 85.0 | 49686.44 | 268.21 | 545.66 | 932.08 | 110.827 | 2.420 | 1219.59 | 422.63 |
| F5 | 91.1 | 85160.25 | 311.06 | 604.91 | 1172.23 | 107.85 | 2.884 | 1357.83 | 496.94 |
| F6 | 91.7 | 69203.79 | 321.54 | 542.88 | 852.91 | 67.482 | 4.765 | 1370.43 | 333.86 |
| F7 * | 92.8 | 98726.79 | 346.85 | 607.76 | 904.66 | 62.253 | 5.572 | 1394.58 | 307.04 |
| F8 | 92.8 | 55770.36 | 291.36 | 572.61 | 757.56 | 77.757 | 3.747 | 1351.63 | 405.06 |
| F9 | 88.3 | 28993.41 | 251.30 | 564.30 | 651.23 | 73.608 | 3.414 | 1243.95 | 339.65 |
| F10 | 90.6 | 61950.01 | 252.13 | 472.95 | 672.00 | 66.179 | 3.810 | 1253.27 | 450.47 |
| M1 | 91.1 | 61092.87 | 285.57 | 470.40 | 844.43 | 61.688 | 4.629 | 1230.42 | 355.51 |
| M2 * | 78.3 | 41005.79 | 272.45 | 435.03 | 737.49 | 65.893 | 4.135 | 1282.32 | 413.46 |
| M3 | 82.2 | 114352.73 | 360.09 | 498.13 | 1053.08 | 94.095 | 3.827 | 1238.78 | 393.10 |
| M4 | 81.5 | 73394.01 | 278.47 | 456.37 | 745.809 | 65.757 | 4.235 | 1211.41 | 529.38 |
| M5 | 85.0 | 13531.00 | 250.13 | 476.60 | 636.17 | 55.574 | 4.501 | 1268.43 | 375.96 |
| M6 | 86.7 | 72398.30 | 280.60 | 475.77 | 663.73 | 47.559 | 5.900 | 1250.89 | 443.88 |
| M7 | 88.3 | 35205.43 | 273.67 | 408.63 | 811.51 | 45.863 | 5.967 | 1204.81 | 482.01 |
| M8 | 90.6 | 49982.49 | 262.61 | 430.11 | 751.19 | 99.5 | 2.639 | 1080.55 | 382.81 |
| M9 | 86.7 | 63413.41 | 263.44 | 453.04 | 756.13 | 66.161 | 3.982 | 1177.70 | 387.12 |
| M10 | 85.0 | 79670.34 | 309.08 | 575.71 | 878.97 | 72.69 | 4.252 | 1343.15 | 399.74 |