Extended Data Fig. 10: Accelerometry for analyzing characteristics of crying by a chest unit on neonates.

Representative power spectrum of signal frequency upon fast Fourier transform processing of neonatal mechano-acoustic signal during a, patting, b, resting, and c, crying. d, Bland Altman plot for comparison between cry duration calculated by a chest unit’s data and manual recording (n = 11 data points from 3 neonates).