From: Calls during agonistic interactions vary with arousal and raise audience attention in ravens
Acoustic Variable | Principal Components | ||
---|---|---|---|
 | 1 | 2 | 3 |
Mean fo (Hz) | 0.97 | 0.18 | 0.08 |
Minimum fo (Hz) | 0.97 | 0.09 | −0.01 |
Maximum fo (Hz) | 0.94 | 0.20 | 0.07 |
End fo (Hz) | 0.93 | 0.10 | −0.01 |
Start fo (Hz) | 0.93 | 0.08 | −0.02 |
Mean amplitude (dB) | 0.17 | 0.97 | 0.15 |
Maximum amplitude (dB) | 0.19 | 0.96 | 0.13 |
Minimum amplitude (dB) | 0.10 | 0.96 | 0.17 |
Jitter | −0.16 | −0.08 | −0.90 |
Tonality | −0.14 | 0.29 | 0.84 |
% of variance explained | 51.62 | 27.59 | 12.19 |
Eigenvalue | 5.16 | 2.76 | 1.22 |