About the Authors

Sonya T. Smith

Affiliations Department of Mechanical Engineering, Howard University, Washington, D.C., United States of America, Section on Auditory Mechanics, National Institute on Deafness and other Communication Disorders, National Institutes of Health, Bethesda, Maryland, United States of America

Richard S. Chadwick

chadwick@helix.nih.gov

Affiliation Section on Auditory Mechanics, National Institute on Deafness and other Communication Disorders, National Institutes of Health, Bethesda, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: STS RSC. Performed the experiments: STS. Analyzed the data: STS RSC. Contributed reagents/materials/analysis tools: STS RSC. Wrote the paper: STS RSC. Designed software: STS.