December 14, 2022
Last Chance to be an Early Bird!
Register by the end of the day today to secure your 2023 NHCA Conference registration seats at our lowest price.
On February 9-11, 2023, come together with colleagues at the Hyatt Regency Jacksonville Riverfront in Jacksonville, FL, to engage with and learn from fellow industry professionals, visit with the organizations who support the association, learn about new products and services, AND get your CEUs!

Take advantage of our exclusive Early Bird discounted rates to save $50 on your full conference registration fee! 
Register Now!
View the Schedule
Annual Sponsorship
Is your company or a company you are connected with interested in supporting NHCA and the annual conference? We have the perfect opportunity for them, check out more information or pass the information on to colleagues below!
Become an Annual Sponsor
Please Donate to the NHCA Scholarship Foundation
Our organization is able to continue its mission because of your support and generosity. By contributing, you'll help ensure that our work continues. Online donations are quick and easy using our secure credit card transactions. We welcome donations of all sizes and payment plans – whether it's a one-time gift, a monthly contribution or part of a matching gifts program. All donors will be recognized in the conference supplement of the Spectrum. Please give as generously as you can here.
Call for Presentations & Sponsors/Exhibitors!

Don't miss your chance to speak or market at the Inuagural International Hearing Protector Fit-Testing Symposium!

Submission Period:
September 22, 2022 - February 22, 2023
The goal of this Symposium is to advance hearing protector fit testing through education, research, implementation, and policy.

Objectives include:
• Increase knowledge regarding the evidence-based use of hearing protector fit-testing
• Identify supports and barriers to fit-testing implementation in occupational settings and develop solutions for overcoming barriers
• Advance hearing protector fit-testing as the rule in hearing loss prevention programs
Find Out More
Submit Your Presentation
Latest NHCA "Listen Up" Column in the Industrial Hygiene in the Workplace (IHW) Magazine

Every two months, NHCA experts contribute a short article to the IHW Magazine.The latest issue included the NHCA article titled "Pharmaceutical Interventions for Hearing Loss: Could a Pill Protect Your Ears?" by Colleen Le Prell (https://industrialhygienepub.com/digital-edition/, November/December issue, page 35).

Future and past IHW magazine issues can also be viewed here. We'll alert you the next time one of our NHCA experts contributes an article. 

Recent Hearing Research
Low Evidence for Tinnitus Risk Factors: A Systematic Review and Meta-analysis.
Biswas R., Genitsaridi E., Trpchevska N., Lugo A., Schlee W., Cederroth C.R., Gallus S, Hall D.A. J Assoc Res Otolaryngol. 2022 Nov 15. doi: 10.1007/s10162-022-00874-y.

Origami-based acoustic metamaterial for tunable and broadband sound attenuation.
Wen G., Zhang S., Wang H., Wang Z.-P., He J., Chen Z., Liu J., Xie Y.M. International Journal of Mechanical Sciences. 2023 Feb 1. doi: 10.1016/j.ijmecsci.2022.107872.
Prospective measurements of hearing threshold during military rifle training with in-ear, protected, noise exposure monitoring. Servi AT, Davis SK, Murphy SA, Fellows AM, Wise SR, Buckey JC, Smalt CJ. J Acoust Soc Am. 2022 Oct;152(4):2257. doi: 10.1121/10.0014700.

The Association between Duration of Noise Exposure in the Workplace and Glucose Metabolism Status: Evidence from the Korea National Health and Nutrition Examination Survey. Oh HY, Yoo JE. Korean J Fam Med. 2022 Nov;43(6):396-402. doi: 10.4082/kjfm.21.0180. Epub 2022 Nov 20.

Effects of coexposure to noise and mixture of toluene, ethylbenzene, xylene, and styrene (TEXS) on hearing loss in petrochemical workers of southern China. Zhang, Y., Liu, Y., Li, Z. et al. Environ Sci Pollut Res (2022). doi: 10.1007/s11356-022-24414-6.

Integrating pharmacogenomics into clinical trials of hearing disorders. Brutnell TP, Wang X, Bao J. J Acoust Soc Am. 2022 Nov;152(5):2828. doi: 10.1121/10.0015092.
Sound Postcard
(c) kibuyu, some rights reserved (CC BY-NC-SA) https://www.inaturalist.org/guide_taxa/878099
How moths evolved a kind of stealth jet technology to sneak past bats
Listen here: https://tinyurl.com/mryxemx2
The cabbage tree emperor moth, a species of silk moth, has furry scales on its wings that absorb the frequencies contained in the echolocation pings of the bats which eat them. Scientists using laser Doppler vibrometry found that the average vibration spectra of the moth’s microperforated wing scales includes three resonators, together spanning the sonar frequencies of their predators, 20 to 150 kHz. Modeling these extremely thin structures informs future development of lightweight resonant sound absorbers for acoustic camouflage in stealth operations and for industrial construction design.
Biomechanics of a moth scale at ultrasonic frequencies
Moth wing-inspired sound absorbing wallpaper in sight after breakthrough
Moth jamming bat -- National Geographic Untamed Americas
Six Emerging Solutions for Industrial Noise Control

Our Vision: To prevent hearing loss and other auditory disorders due to noise and secondary environmental factors in all sectors of society.

Our Mission: NHCA provides leadership, expertise, and education on hearing loss prevention strategies and services to the broader professional community and empowers and supports members through networking and advocacy.


Who is NHCA?

We are a group of passionate hearing conservationists willing to share their expertise to prevent hearing loss. NHCA members include occupational and clinical audiologists, industrial hygienists, occupational health nurses, acoustical engineers and technicians, physicians, occupational health and safety professionals, military personnel, university professors, students, researchers and others with an interest in hearing conservation. 

Visit the Virtual Marketplace Year-Round! 

Learn more about NHCA’s sponsors by accessing profiles, videos, and other helpful links here.
If you are not a member, click here and join today!
- Marjorie Grantham - Editor

Questions? Contact us at [email protected]