Supplementary Materials

The PDF file includes:

  • Fig. S1. Funnel template for smartphone.
  • Fig. S2. Conceptual diagram of the smartphone-based system.
  • Fig. S3. Processed waveforms of patients under 18 months of age.
  • Fig. S4. Comparison of waveforms from an ear across different smartphones.
  • Fig. S5. Individual patient waveforms obtained from different smartphones.
  • Fig. S6. Processed waveforms of testing by parents.
  • Fig. S7. Processed waveforms of confounding ear pathologies.
  • Fig. S8. Effect of angle of insertion on system performance in a patient with middle ear fluid.
  • Fig. S9. Processed waveforms for a crying 2-year-old patient with partial head movement.
  • Fig. S10. Effect of funnel deformation on system performance.
  • Fig. S11. Effect of cerumen on acoustic waveforms.
  • Fig. S12. Design for earbud headphones.
  • Table S1. Demographic summary for first clinical study.
  • Table S2. Interchirp reliability testing.
  • Table S3. Funnel construction times and usability ratings.
  • Legends for movies S1 and S2

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Other Supplementary Material for this manuscript includes the following:

  • Movie S1 (.mp4 format). Video illustrating proper technique for testing.
  • Movie S2 (.mp4 format). Instructional video for funnel construction.