Table 2. Acoustic features of vocalizations emitted during the four phases of the courtship sequence.
| Groups / Acoustic features | Total number of syllables (syllables) | Total duration / min (s) | Number of syllables / min | Mean syllable duration (ms) | RMS amplitude (dB) | Peak frequency (kHz) | Fundamental frequency (kHz) | Bandwidth (Hz) | Entropy |
|---|---|---|---|---|---|---|---|---|---|
| ES | 2658 (n = 11) | 9.098 ± 1.725 | 265.8 ± 25.76 | 37.75 ± 3.727 | -32.66 ± 1.213 | 76.2 ± 1.771 | 68.67 ± 1.631 | 1898 ± 34.40 | 0.2108 ± 0.002995 |
| MS | 2664 (n = 10) | 4.56 ± 0.5704 | 88.8 ± 12.11 | 70.79 ± 7.635 | -31.97 ± 0.801 | 74.898 ± 1.503 | 64.68 ± 1.932 | 1813 ± 45.34 | 0.2214 ± 0.003589 |
| LS | 2166 (n = 10) | 4.59 ± 0.7116 | 72.2 ± 8.738 | 72.72 ± 7.753 | -32.16 ± 0.76 | 75.134 ± 1.669 | 64.37 ± 1.971 | 1815 ± 33.41 | 0.2258 ± 0.002108 |
| MM | 3177 (n = 6) | 14.12 ± 1.857 | 176.5 ± 30.94 | 86.97 ± 8.438 | -29.99 ± 1.088 | 75.669 ± 2.724 | 59.32 ± 2.125 | 1610 ± 23.08 | 0.1867 ± 0.007772 |
Average scores were compared using a one-way ANOVA followed by Tukey’s test. Data shown are mean ± SEM.