Science Advances

Supplementary Materials

This PDF file includes:

  • Legends for audio files S1 and S2
  • fig. S1. Monkey MRIs used to estimate the conversion factor from linear midsagittal diameter measurements to two-dimensional areas.
  • fig. S2. Comparison of human female vowels in Dutch, which has vowels not present in English (red dashed line), with the macaque vocal tract model (gray dotted line).

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Other Supplementary Material for this manuscript includes the following:

  • audio file S1 (.wav format). Audio file of an adult human female saying “Will you marry me?,” resynthesized with a noisy source.
  • audio file S2 (.wav format). Audio file of our macaque vocal model uttering the same phrase “Will you marry me?,” synthesized with the same noisy source.

Files in this Data Supplement: