Canadian Academy of Audiology

12/18/2025

CAA extends our warmest wishes to our members, colleagues, and supporters across the hearing and balance care community. Thank you for your continued dedication, collaboration, and commitment to our shared goal of advancing hearing and balance health for all.

CAA will be closed from December 22nd to January 2nd, inclusive. - https://mailchi.mp/293cbd19de97/caa-this-week-holiday-greeting-and-closure

12/16/2025

Checkout our latest job posting on CAA Career Postings. Click link for more information and how to apply. - https://mailchi.mp/89cb1e009e48/caa-career-postings-december-16-2025

12/11/2025

In CAA This Week, read details of CAA's holiday closure. Click link - https://mailchi.mp/9a3389e25e41/caa-this-week-december-11-2025

12/10/2025

Interview with Dr. Mead C. Killion, PhD
by Marshall Chasin,

The Official Publication of the Canadian Academy of Audiology

12/06/2025

https://www.facebook.com/share/p/1BPBRuUpRc/

Sound Exposures and Hearing Thresholds of Symphony Orchestra Musicians

by Mead Killon, PhD

Although there had been articles in the 1970s and 1980s about the effects of music on hearing thresholds, this was amongst the first to use dosimetry and to compare with international noise standards. To even accomplish something like this, Mead needed assistance from the Chicago Symphony Orchestra and a “buy-in” from its musicians and its management. Through his many contacts with the Symphony, he was able to complete this study. Mead was not shy about asking people to do things.

https://canadianaudiologist.ca/issue/volume-12-issue-6-2025/sound-exposures-and-hearing-thresholds-of-symphony-orchestra-musicians/

12/01/2025

An Earplug with Uniform 15-dB Attenuation
by Mead Killon, PhD

Based on a patent by Elmer Carlson (1983), Mead sought permission from Knowles to license this idea to provide musicians with safe and effective hearing protection. Knowles was not interested in pursuing this product so Mead commercialized the ER15 earplug as one of Etymotic Research’s first products. Unlike previous hearing protectors, the ER15 had two important properties- a flat or uniform attenuation pattern from 63 Hz to 16,000 Hz (with a slight dip in the 6000 Hz region) and “only” 15 dB of attenuation. Mead, being a musician himself was one of the first users.

https://canadianaudiologist.ca/issue/volume-12-issue-6-2025/an-earplug-with-uniform-15-db-attenuation/?fbclid=IwY2xjawOasf5leHRuA2FlbQIxMABicmlkETFLdnFOcFhiZzhhbk56c0Jic3J0YwZhcHBfaWQQMjIyMDM5MTc4ODIwMDg5MgABHvLhWKAw2AQeD5LmmCu8jDbitcM8yTAcIphdX8Sj1mfF_tdmDNpt6GnVLLxP_aem_UfEeRmuJduTLhrXZNoiHrQ

11/29/2025

An inspiring student perspective!

A student from Université Laval recently published an article in Sourdine magazine highlighting the incredibly positive experience of the students during the latest conference at Blue Mountains.

We’re proud to see our students actively engaging in professional events and sharing their insights with the community. Congratulations on this great contribution!

Quinze finissants en audiologie de l’Université Laval ont participé au congrès de l’Académie canadienne d’audiologie, vivant une expérience enrichissante mêlant apprentissages scientifiques, découvertes technologiques, réseautage professionnel et réflexion sur l’avenir de la pratiqu...

11/28/2025

Response Modifying Earhooks for Special Populations
by Mead Killon, PhD

“Response-Modifying Earhooks for Special Fitting Problems” appeared in Audecibel in the fall of 1985 and dovetails off of his previous article the year earlier in Hearing Instruments about a prototype hearing aid that could address low-frequency hearing loss but with an open mold. In the previous article, the prototype hearing aid has 75 mm of tubing placed in a behind-the-ear shell. In this article, Mead Killion and Donald Wilson (who was also important in the development of the prototype hearing aid) describes three new types of earhooks that can be used with conventional behind-the-ear hearing aids.

https://canadianaudiologist.ca/response-modifying-earhooks-for-special-populations/

11/27/2025

Read the latest issue of CAA This Week. Click link - https://mailchi.mp/14ef60018642/caa-this-week-november-27-2025

11/26/2025

A Low-Frequency Emphasis Non-occluding Hearing Aid
by Mead Killon, PhD

This article, co-written with Charles Berlin and Linda Hood, takes a major leap into a realm where audiologists normally don’t tread. It describes a prototype hearing aid with 75 mm of tubing, one acoustic damper, and 2 filter chambers placed in a behind-the-ear hearing aid shell.

https://canadianaudiologist.ca/.../a-low-frequency.../

11/25/2025

https://nouvelles.ulaval.ca/2025/11/24/une-methode-pour-mieux-mesurer-les-repercussions-de-l'hyperacousie-daf4d1a0-0a87-42c6-afa2-69df1f655d3d

Une équipe a mis au point un protocole pour établir plus objectivement les conséquences fonctionnelles de l'intolérance aux sons de forte intensité

11/24/2025

Something about Mead

by Marshall Chasin, AuD, Steve Aiken, PhD, Steve Armstrong, BEng and Larry Revit, MA.

Dr. Mead Killion passed away comfortably on November 3, 2025 but he was aware of this issue of CanadianAudiologist.ca celebrating his life and accomplishments. Despite his passing, clinicians and researchers will continue to see “something about Mead” in their work for many years to come.
https://canadianaudiologist.ca/.../something-about-mead-2/

The Official Publication of the Canadian Academy of Audiology