schwartz, jay w. Gouzoules, Harold Supplementary material to BEH 3566 Audio files of representative spectrograms of screams used as stimuli. Four stimuli, showing the four types of modifications. The modified scream is shown first, followed by the unmodified source version. human;non-linguistic vocalization;communication;emotion;arousal;scream;acoustics;Animal Behaviour 2019-07-17
    https://brill.figshare.com/articles/media/Supplementary_material_to_BEH_3566/8256638
10.6084/m9.figshare.8256638.v1