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.

The rest of the stuff- part 7 of 7

Marshall Chasin

The music program is similar to the speech-in-quiet program In previous entries of this 7 part blog series, the problem and some clinical and technical solutions were discussed. ASSUMING that we now have a hearing aid that can handle the higher sound level elements of music without distortion, what constitutes an optimal music program? In previous blog entries the benefits

The Fourth of Many Technical Innovations- part 6 of 7

Marshall Chasin

Post 16 bit architectures There is a great formula for the calculation of the dynamic range based on bits. It is 20nlog2. You can use this to impress your friends, and even (if done properly), to make you the hit of the party. Where else can you hear “log2” and “please pass the shrimp” in the same sentence? The hearing

Je n’ai Jamais pensé Que J’avais un problem d’audition… Ça N’a même Jamais traversé mon esprit

Marshall Chasin

par Connor Quinn reprinted Courtesy La Vie Aud Gordie Howe est un membre du Temple de la renommée du hockey ainsi qu’ue membre de l’Ordre du Canada et a remporté la Coupe Stanley à quatre reprises. Il a parlé récemment avec Connor Quinn, de La vie auditive, au sujet de la santé auditive et au sujet de sa carrière en

The third of many technical innovations- part 5 of 7

Marshall Chasin

Analog compression before the A/D and digital expansion afterwards: The ducking-under-the-bridge metaphor discussed in part 1 of this blog series is apropos for this blog entry. For those who may not remember the first blog entry in this series, either go to that blog entry or go here. I know ReSound uses this approach, and other hearing aid manufacturers may as

The second of many technical innovations- part 4 or 7

Marshall Chasin

The -6 dB/octave microphone for music: This post is the latest in a series about the ways that the hearing aid industry has responded to improve the quality of music for hard-of-hearing people. And like the other methods, this one has the desirable side effect of improving the quality of the hard-of-hearing person’s own voice. The previous entries in this series

The first of many technical innovations- part 3 of 7

Marshall Chasin

Live Music Plus from Bernafon and the Dream/Unique circuits from Widex: As discussed in part 1 of this blog series, there is a “front end” problem with digital hearing aids that limits their usefulness with the higher sound level inputs that are characteristic of music. In part 2, some clinical strategies were discussed to improve a hearing aid for music-

Music and Hearing Aids: Some Clinical Strategies – Part 2 of 7

Marshall Chasin

Last week, in the first of a seven-part series, the problems associated with listening to and playing music with many modern digital hearing aids were discussed. This week’s post discusses some clinical strategies that can improve a hearing aid’s usability with music. It is a common clinical complaint that a person loves their hearing aids for speech (especially in quiet),

La technologie aide les personnes malentendantes à rester

Marshall Chasin

La technologie aide les personnes malentendantes à rester « BouClées » https://www.cbc.ca/news/credit.html” CBC News (reproduit avec permission) Les défenseurs des droits des personnes malentendantes espèrent qu’une technologie qui diminue radicalement le bruit de fond pour les personnes malentendantes trouvera sa place dans les lieux publics partout au Canada. La technologie, appelée « boucle auditive » (hearing loop), est un cable

Music and Hearing Aids: The problem – Part 1 of 7

Marshall Chasin

This is the first of a seven-part blog series about music and hearing aids. Part 1 of this series defines the problem. This is not a new topic and has been covered at least a dozen times over the last several years in this blog. Part 2 in this series describes some clinical strategies that can be used while the

The Final Element- a single channel hearing aid

Marshall Chasin

This may sound like the title of a science fiction novel or a movie with Bruce Willis (or was that the “Fifth Element”?), but this is all about that one last piece of the puzzle to optimize a hearing aid for music. The last several years have seen a remarkable improvement in a hearing aid’s ability to handle the higher