Multiparametric Analysis of Speaking Fundamental Frequency in Genetically Related Speakers Using Different Speech Materials
f0mean: f0 mean in semitones ref 1 Hz/ and in Hertz
f0med: f0 median in semitones ref 1 Hz/ and in Hertz
f0min: f0 minimum in semitones ref 1 Hz/ and in Hertz
f0max: f0 maximum in semitones ref 1 Hz/ and in Hertz
f0sd: f0 standard-deviation in semitones ref 1 Hz/ and in Hertz
f0base: Base value of f0 in semitones ref 1 Hz/ and in Hertz (i.e., equivalent to the 7.4th quantile of the f0 sample)
f0SAQ: f0 semi-amplitude between quartiles in semitones ref 1 Hz/ and in Hertz (i.e., a non-parametric measure of f0 dispersion)
f0M1: Smoothed f0 peak rate in peaks per second (i.e., f0 peak rate/s)
f0M2: Standard-deviation of f0 maxima in semitones ref 1 Hz/ and in Hertz (i.e., when there is more than one peak in the interval)
f0M3: Standard-deviation of the F0 maxima positions in seconds (i.e., standard-deviation of peaks' duration)
f0M4: 1st-derivative f0 mean in Hertz/frame of the positive derivatives (i.e., f0 rising rate in the peaks)
f0M5: 1st-derivative f0 mean in Hertz/frame of the negative derivatives (i.e., f0 falling rate in the peaks)
f0M6: 1st-derivative f0 standard-deviation in Hertz/frame of the positive derivatives (i.e., standard deviation of f0 rising rate)
f0M7: 1st-derivative f0 standard-deviation in Hertz/frame of the negative derivatives (i.e., standard deviation of f0 falling rate)
f0M8: Mean peakness of f0 max in semitones relatively to f0 range multiplied by 1000 (i.e., corresponding to the width of f0 peaks)
AN IMPORTANT NOTE:
Subsetting is required for "Lengthened Vowels", so vowel duration (DUR) is ≥ 160 ms.