Marshall Chasin

Marshall Chasin, AuD, is an audiologist and the Director of Auditory Research at the Musicians’ Clinics of Canada, Adjunct Professor at the University of Toronto (in Linguistics), Associate Professor in the School of Communication Disorders and Sciences at the Western University. He is the author of over 200 articles and 7 books including Musicians and the Prevention of Hearing Loss. Dr. Chasin has been the recipient of many awards over the years including the 2012 Queen Elizabeth II Silver Jubilee Award for service to Canada and the Canada 150 Medal in 2017. He has developed a new TTS app called Temporary Hearing Loss Test app.

CaptiView de Doremi

Marshall Chasin

Par Elizabeth Manley Gestionnaire, Trademarks and Marketing Law CINEPLEX ENTERTAINMENT LP Système de projection de films sous-titrés CaptiView de Doremi pour spectateurs sourds et malentendants actuellement à l’affiche dans les salles de cinéma Cineplex Entertainment de tout le Canada L’industrie cinématographique mondiale se lance dans un excitant et formidable changement quant à la façon de présenter des films. Les tirages

Less change is more, except when it comes to money… part 2

Marshall Chasin

Last week, part 1 of this series examined Naomi Croghan’s research. She, along with her PhD supervisors and now colleagues, Kathryn Arehart and James Kates, had recently published an article in Ear and Hearing entitled “Music Preferences With Hearing Aids: Effects of Signal Properties, Compression Settings, and Listener Characteristics” They used a virtual hearing aid where music could be processed through

“Less change is more”, except when it comes to money: Part 1

Marshall Chasin

For listening to music through hearing aids there seem to be two rules of thumb(s): One is that less change is more, and the other is that music settings are not all that different from speech (in quiet) settings. There are no thumbs left for the other side of the issue: Music settings are more compressed than those for speech.

Upwards spread of masking for fun and profit… or at least to get away from bats

Marshall Chasin

Here is a scenario that may occur to you once or twice a day, as it does to me: Pretend you are a moth flying around, minding your own business, and a bat decides that you would be a tasty meal. You quickly have to review your audiology training and knowledge of a bat’s echolocation signal (anywhere from 11 kHz to

Working with musicians is fun

Marshall Chasin

We don’t normally get up in the morning, go home to get a change of clothes, and say “work today will be fun.” But working with musicians is fun. The clinical knowledge needed for working with musicians is really everything that we learned in our audiology training, but aimed in a slightly different direction. We get to use the really neat

Retard/trouble d’acquisition du langage par opposition à carence du langage

Marshall Chasin

par Barbara O’Dea, Ph.D. Nous nous attendons à ce que les enfants entourés de langages apprennent le ou les langages qui les entourent. Les enfants qui ont un retard d’acquisition du langage peuvent accéder (entendre ou voir) au langage qui les entoure. Ils apprennent le langage selon le déroulement normal, mais ils l’apprennent à un rythme plus lent. Les enfants

Live Music, Recorded Music, and Strudel

Marshall Chasin

In New Orleans, the City Zoning Commission has recommended a Comprehensive Zoning Ordinance, which is now before the City Council. It is quite comprehensive, but very much like strudel dough. My grandfather came from Russia in the 1920s, and he brought with him, along with my grandmother, mother and uncle, the ability to make strudel. Strudel is an amazing pastry- one

The Acoustics of Hearing Aids: Tubes with Flare – part 3

Marshall Chasin

Welcome to the final part of a three-part series. It was originally published as part of an article I wrote for the May 2013 Hearing Review. Part 1 of this blog series dealt with standing waves, which are as important for behind-the-ear hearing aids as they are for our vocal tract and musical instruments. Part 2 dealt with damping and impedance, and while not these

The Acoustics of Hearing Aids: Damping and Impedance- Part 2

Marshall Chasin

Last week in part 1 of this blog series, we reviewed standing waves found in hearing aids, but drew a parallel between behind-the-ear hearing aids, our vocal tract, and musical instruments (not to mention our ear canals… well, I just mentioned it, so I guess that I should not have said, “not to mention”…). This three-part series is based on

The Acoustics of Hearing Aids: Standing Waves- Part 1

Marshall Chasin

On May 6, 2013, an article of mine was published in the Hearing Review about the acoustics of hearing aids. This was divided into three categories- 1. standing waves, 2. damping and impedance, and 3. flared or belled tubes. While this article was about hearing aids, the acoustic principles underlie speech acoustics and also the acoustics of musical instruments- something that