Table 3.
Classification analysis result for each single acoustic variable.
| % | F2 | VS | M1 | VID | AR | dB | F0 | PVI | ||
|---|---|---|---|---|---|---|---|---|---|---|
|
| ||||||||||
| Etiology | All | 36.3 | All | 35.0 | 38.6 | 51.0 | 49.5 | 33.0 | 33.0 | 32.0 |
| M | 47.6 | M | 17.2 | |||||||
| F | 56.4 | F | 38.5 | |||||||
| Type | All | 36.3 | All | 22.3 | 37.6 | 17.6 | 27.2 | 19.4 | 31.1 | 19.4 |
| M | 34.9 | M | 23.4 | |||||||
| F | 53.8 | F | 20.5 | |||||||
| Severity | All | 58.8 | All | 45.6 | 58.4 | 46.1 | 51.5 | 42.7 | 41.7 | 32.0 |
| M | 66.7 | M | 50.0 | |||||||
| F | 56.4 | F | 46.2 | |||||||
Note. Numbers in the table indicate the number of subjects who were correctly identified by discriminant anlaysis as original categories. For second formant slope (F2) and vowel space (VS), results are reported with separation between male and female speakers. Each acoustic variable is indicated in abbreviated form. M1 = first-moment difference; VID = voiceless interval duration; AR = articulation rate; dB = intensity range; F0 = fundamental frequency range; PVI = Pairwise Variability Index.