Fig. 1
From: Sex stereotypes influence adults’ perception of babies’ cries
Illustration of PSOLA resynthesis applied to a baby’s cry. a Spectrogram of a natural cry with a mean fundamental frequency (F0) of 344 Hz. b spectrograms of resynthesised variants of this cry, with mean F0s set to 310 Hz, 440 Hz and 570Hz. While the F0 of the cry is scaled up or down, all other parameters in the call (duration, resonances, etc.) remain unchanged