10.1371/journal.pone.0116136.g002 Adriano R. Lameira Adriano R. Lameira Madeleine E. Hardus Madeleine E. Hardus Adrian M. Bartlett Adrian M. Bartlett Robert W. Shumaker Robert W. Shumaker Serge A. Wich Serge A. Wich Steph B. J. Menken Steph B. J. Menken Descriptive analyses of orangutan faux-speech; a) Time series of an orangutan faux-speech bout. Public Library of Science 2015 speech-like rhythm faux-speech prediction speech rhythm ape orangutan vowel 5 Hz-rhythm signals 2015-01-08 03:32:20 Figure https://plos.figshare.com/articles/figure/_Descriptive_analyses_of_orangutan_faux_speech_a_Time_series_of_an_orangutan_faux_speech_bout_/1286635 <p>Dark blue line indicates raw power spectra (dB), light blue line indicates acoustic amplitude envelop measure, and red line indicates inter-lip distance measure. <b>b)</b> Spectrographic representation of faux speech. Red dots indicate formats and blue line indicates fundamental frequency measure. <b>c)</b> Average estimates of raw power spectra; <b>d)</b> Detrended power spectra; <b>e)</b> Coherence of orangutan faux-speech.</p>