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.

Best of Marshall Chasin: Musician’s worst nightmare and Hallowell Davis

Marshall Chasin

Some would think that hearing loss is the musician’s worst nightmare, and some would think that it is tinnitus, but the musician’s greatest fear is losing their ability to perceive pitch. This is related to hearing but isn’t the first thing that audiologists typically think about when they assess a musician. To understand a musicians’ fear of losing their ability

On Vacation

Marshall Chasin

I’m taking a two-week break. While I’m gone, please enjoy a couple of favorite posts, to run June 11 and 18, if you missed them the first time. Thank you – Marshall Chasin

Musicians and not industrial workers – part 3

Marshall Chasin

In part 1 of this blog we discussed the NRR as a single-number rating system for hearing protection that is required by the EPA for all non-custom hearing protection equipment. In part 2 we talked about a failed attempt to establish a two-number rating system and a new one was proposed. This proposition was based on the essential difference between

La plasticité cérébrale et la déficience auditive

Marshall Chasin

Republished from the August 2007 issue of Listen/Ecoute, with kind permission of the Canadian Hard of Hearing Association. Par Marilyn Dahl Je suis malentendante, donc j’entends plus lentement.» Ce sont les mots que Margaret Brown, présidente du secteur de Chilliwack, utilise pour expliquer sa difficulté auditive à autrui. J’ai adopté cette formule pour mon propre usage et elle semble efficace pour faire

A dual number rating system for hearing protection – part 2

Marshall Chasin

In Part 1 of this blog we talked about a single number rating scheme for hearing protectors called the Noise Reduction Rating or NRR. This number is mandated to be written on the packaging of non-custom hearing protectors by the Environmental Protection Agency or EPA. The problems with single number rating schemes are that they tend to be simplistic, require

The NRR and Musicians’ Earplugs – Part 1

Marshall Chasin

Whenever one measures the attenuation of hearing protection, it is different for every frequency. This has to do with the rule of acoustics – generally lower frequency, longer wavelength sounds do not “see” an ear obstruction such as an earplug or earmuff as well as the higher frequency, shorter wavelengths. Subsequently, lower frequencies have relatively little attenuation (typically no more

La course vers la ligne d’arrivée

Marshall Chasin

Republished from the Fall 2007 issue of Listen/Ecoute, with kind permission of the Canadian Hard of Hearing Association. Par Sherry Hinman Il y a seize ans, Kris Martin suivait la course de son oncle et de son cousin et décidait d’être lui aussi pilote de course. Kris avait quatre ans. « Mes parents m’ont dit que lorsque j’aurais dix ans,

The audiogram is really quite silly.

Marshall Chasin

I am constantly amazed by how similar the hearing of an 85-year-old who has never been exposed to noise and has never seriously played music is to the hearing of an 85-year-old retired professional clarinet player who sat down-wind of the trumpet section for more than 45 years. If their hearing was measured when these two fellows were in their

Some aspects of how music and language may interact

Marshall Chasin

The past decade has seen a number of studies (actually over 150 that I could find) that attest to a co-operation (or at least an interaction) between musical ability and the development of language. Some of these studies are well researched such as how early musical training can facilitate language and language development, while other studies that are less rigorous

Prendre l’avion : surmonter les obstacles de la déficience auditive

Marshall Chasin

Republished from the August 2007 issue of Listen/Ecoute, with kind permission of the Canadian Hard of Hearing Association. par Ruth Warick Johan Hammarström est né en 1977 avec une importante déficience auditive. Il a fréquenté des écoles intégrées et il était le seul à porter des appareils auditifs. Ce ne fut pas facile, mais il a essayé de s’intégrer en minimisant