Table 9 Accuracy (%) of each classifier using the prosodic features in gender-controlled experiments
Male | Female | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
( p = 18, c = 31) | ( p = 10, c = 20) | ||||||||||
ID | Features | SVM | Bayes | CTree | NN | p value | SVM | Bayes | CTree | NN | p value |
5.1 | Response time | 68.6 | 58.4 | 69.0 | 64.5 | 0.005 | 50.7 | 50.0 | 44.7 | 42.7 | 0.468 |
5.2 | Response length | 50.0 | 46.1 | 63.9 | 64.1 | 0.033 | 51.0 | 50.7 | 59.0 | 50.0 | 0.114 |
5.3 | Silence ratio | 86.1 | 83.3 | 83.9 | 80.8 | <0.001 | 66.0 | 68.0 | 73.7 | 72.7 | 0.001 |
5.4 | Silence to utt. ratio | 60.2 | 62.9 | 54.1 | 66.9 | 0.017 | 83.0 | 82.0 | 71.7 | 53.7 | <0.001 |
5.5 | Long silence ratio | 63.9 | 63.3 | 55.9 | 48.0 | 0.048 | 51.7 | 63.0 | 47.0 | 53.7 | 0.077 |
5.6 | Avg. silence count | 79.0 | 79.4 | 73.9 | 72.9 | <0.001 | 76.0 | 72.0 | 80.0 | 62.7 | <0.001 |
5.7 | Silence rate | 63.7 | 66.3 | 70.0 | 63.1 | 0.003 | 59.0 | 60.7 | 58.0 | 78.7 | <0.001 |
5.8 | Cont. speech rate | 82.9 | 79.0 | 83.9 | 69.2 | <0.001 | 73.0 | 72.0 | 71.7 | 47.0 | 0.007 |
5.9 | Avg. cont. word count | 86.1 | 59.0 | 84.1 | 77.1 | <0.001 | 68.7 | 62.7 | 68.0 | 50.7 | 0.014 |
6.1 | Avg. abs. delta energy | 69.4 | 70.0 | 81.0 | 84.1 | <0.001 | 53.0 | 46.7 | 36.0 | 41.0 | 0.380 |
6.2 | Dev. of abs. delta energy | 69.4 | 69.8 | 49.2 | 51.0 | 0.008 | 55.7 | 57.0 | 42.7 | 38.7 | 0.176 |
6.3 | Avg. abs. delta pitch | 67.8 | 74.7 | 63.1 | 58.4 | 0.001 | 60.7 | 45.0 | 63.7 | 45.0 | 0.060 |
6.4 | Dev. of abs. delta pitch | 76.1 | 72.2 | 63.9 | 55.5 | <0.001 | 48.0 | 38.7 | 70.7 | 67.7 | 0.007 |
6.5.1 | Avg. abs. delta formant 1 | 59.4 | 66.3 | 64.5 | 53.9 | 0.016 | 53.0 | 52.0 | 46.7 | 48.0 | 0.374 |
6.5.2 | Avg. abs. delta formant 2 | 55.9 | 60.2 | 57.8 | 52.0 | 0.108 | 39.0 | 38.7 | 42.7 | 55.7 | 0.259 |
6.5.3 | Avg. abs. delta formant 3 | 66.1 | 65.9 | 60.2 | 50.8 | 0.022 | 52.7 | 42.7 | 69.7 | 48.0 | 0.007 |
6.5.4 | Avg. abs. delta formant 4 | 69.2 | 67.1 | 64.1 | 58.6 | 0.009 | 42.7 | 53.7 | 56.7 | 52.7 | 0.209 |
6.6 | Voicing ratio | 75.3 | 75.1 | 70.2 | 69.8 | 0.001 | 57.7 | 41.0 | 58.7 | 50.7 | 0.111 |
7.1 | Phoneme rate | 63.9 | 71.0 | 65.1 | 67.8 | 0.004 | 71.7 | 68.0 | 48.0 | 46.0 | 0.017 |
7.2 | Word rate | 70.0 | 70.2 | 53.3 | 45.5 | 0.005 | 35.0 | 66.7 | 48.0 | 46.7 | 0.014 |