Skip to main content

Table 1 Description of measured acoustic parameters

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

Parameter Definition
Time-related parameters
Call duration [ms] Time between the onset and the offset of a call.
ICI [ms] Time between the offset of a call and the onset of the successive call.
Peaktime [ms] Time between the onset and the maximum amplitude of a call.
Source-related spectral parameters
MeanF0 [Hz] Mean fundamental frequency of a call.
MinF0 [Hz] Minimum fundamental frequency of a call.
MaxF0 [Hz] Maximum fundamental frequency of a call.
SDF0 [Hz] Standard deviation of the fundamental frequency of a call.
Filter-related spectral features
Peak [Hz] Frequency with maximum energy over a call.
MeanF1 [Hz] Mean frequency of the first formant of a call.
SDF1 [Hz] Standard deviation of the first formant frequency of a call.
BWF1[Hz] Bandwidth of the first formant frequency of a call.
MeanF2 [Hz] Mean frequency of the second formant of a call.
SDF2 [Hz] Standard deviation of the second formant frequency of a call.
BWF2 [Hz] Bandwidth of the second formant frequency of a call.
MeanF3 [Hz] Mean frequency of the third formant of a call.
SDF3 [Hz] Standard deviation of the third formant frequency of a call.
BWF3 [Hz] Bandwidth of the third formant frequency of a call.
F2–F1 [Hz] Difference between the mean of the second and the first formant frequency.
Consistency Mean maximum correlation of power spectra of successive 25 ms time steps of a call.
Tonality-related parameters
Cepstral peak [V] Value of the peak at the fundamental period of a cepstrum for the middle 10 ms of the call.
Voiced [%] Percentage of voiced frames of a call.
MaxHNR [db] Maximum harmonic-to-noise ratio of a call.