Table 3. Acoustic cues to maturity.
| Variables | F1,160 | Level of significance | Mean values ± SD |
|
|---|---|---|---|---|
| Maturity group 1 | Maturity group 2 | |||
| Formant 2 | 520.382 | p < 0.001 | 77.14 Hz ± 7.6 | 104.53 Hz ± 7.7 |
| Formant 1 | 343.144 | p < 0.001 | 21.53 Hz ± 2.0 | 29.44 Hz ± 3.3 |
| Max Frequency | 133.041 | p < 0.001 | 13.81 Hz ± 1.6 | 16.96 Hz ± 1.9 |
| Min Frequency | 130.844 | p < 0.001 | 9.91 Hz ± 1.2 | 12.50 Hz ± 1.6 |
| FinishFrequency | 108.385 | p < 0.001 | 10.41 Hz ± 1.5 | 13.20 Hz ± 1.9 |
Mean values ± SD of the most important acoustic parameters and significance levels of the ANOVA, comparing group means.