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Table 2 Results of the one-way Anova testing for differences between individuals for each acoustic parameter and arousal condition and the correlation coefficient with the three most important PCs for the DFA; LOW = Low arousal condition; HIGH = High arousal condition; bold p-values represent significant difference p < 0.05; bold loading factors represent the parameters showing loading factors higher than 0.700 with the respective PC

From: Vocal correlates of sender-identity and arousal in the isolation calls of domestic kitten (Felis silvestris catus)

  LOW HIGH
Parameters F p PC1 PC2 PC6 F p PC1 PC2 PC3
Time-related parameters
Call duration [ms] 6.632 <.001 -.368 .365 .324 5.574 <.001 -.147 -.375 .132
ICI [ms] 1.230 0.256 -.080 -.113 -.218 1.894 0.022 .255 .168 .124
Peaktime [ms] 2.688 0.001 -.203 .056 .487 3.978 <.001 -.032 -.412 .145
Source-related parameters
MeanF0 [Hz] 25.331 <.001 .863 .047 .304 20.199 <.001 -.380 .810 .018
MinF0 [Hz] 16.034 <.001 .864 -.149 .050 10.574 <.001 -.400 .650 -.312
MaxF0 [Hz] 27.394 <.001 .751 .213 .426 17.166 <.001 -.341 .818 .166
SDF0 [Hz] 2.806 0.001 -.361 .363 .380 5.921 <.001 .012 .371 .602
Filter-related parameters
Peak [Hz] 3.919 <.001 .387 .255 .132 10.444 <.001 -.725 -.236 .071
MeanF1 [Hz] 8.305 <.001 .207 .814 -.081 8.631 <.001 -.677 -.202 .403
SDF1 [Hz] 3.170 <.001 -.122 .755 .048 4.558 <.001 -.047 .172 .614
BWF1 [Hz] 1.848 .033 -.015 .582 -.311 1.953 .017 .207 .112 .486
MeanF2 [Hz] 4.287 <.001 -.668 .078 .326 11.260 <.001 .711 .315 .174
SDF2 [Hz] 2.322 .005 -.147 .289 -.080 4.707 <.001 .406 -.133 .414
BWF2 [Hz] 1.130 .335 -.065 -.146 .072 1.896 .022 .281 -.143 .031
MeanF3 [Hz] 3.411 <.001 -.538 .022 .047 5.251 <.001 .658 .170 .046
SDF3 [Hz] 1.727 .052 -.247 .306 .102 2.442 .002 .107 -.451 .455
BWF3 [Hz] 2.086 .014 -.152 -.363 .047 2.386 .003 -.031 -.313 .045
F2-F1 [Hz] 6.789 <.001 -.704 -.385 .333 14.675 <.001 .850 .329 -.072
Consistency 2.072 0.014 .205 -.474 .195 5.135 <.001 .140 -.110 -.695
Tonality-related parameters
Cepstral peak [V] 3.902 <.001 .174 .632 .038 3.501 <.001 -.230 .074 .492
Voiced [%] 2.569 0.002 .459 -.061 .090 1.963 0.016 .091 .351 .025
MaxHNR [db] 4.058 <.001 .556 -.197 .171 2.174 0.007 -.438 .169 -.156