My first year of music school, I was fortunate enough to be exposed to the research of Dr. Marshall Chasin - an audiologist in Toronto. His research on hearing

My first year of music school, I was fortunate enough to be exposed to the research of Dr. Marshall Chasin - an audiologist in Toronto. His research on hearing loss, in particular hearing loss of musicians, deserves wide exposure for anyone considering making a career out of using their ears. From one of his publications I use the following as a rule of thumb: 80db * 40hrs/week = permanent hearing damage 83db * 20hrs/week = permanent hearing damage 86db * 10hrs/week = permanent hearing damage 91db * 5hrs/week = permanent hearing damage 94db * 2.5hrs/week = permanent hearing damage Further reading from Dr. Chasin: http://www.marshallchasinassociates.ca/hearing_articles.htm http://www.marshallchasinassociates.ca/hearing_articles.htm