Extended Data Fig. 1: Acoustic representation of vocal repertoires across species.
From: Convergent vocal representations in parrot and human forebrain motor networks
a-c, Mean pitch, duration, and entropy variance from a human (a), a zebra finch (b), and a budgerigar (c). Data represent the same spoken words and vocal elements analyzed in Fig. 1a–f. d, Overlay of data from panels a through c.
