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Rahman Davoodi
02-05-1998, 07:41 AM
Dear Biomech-L Readers,

Following an incident my friends has been hearing a frustrating "hiss" noise
in a quiet areas such as sleeping time. The audiogram shows that his right
ear can not distinguish one of the high frequencies. The incident occurred
when he was sleeping in a room with closed doors and windows. At the same
time, the construction workers started using Jack-hammer to remove the old
asphalt from the roof of the same room.
Please share with us your insights on the following questions.

1. Could the room with closed doors and windows resonate and intensify the
noise created by the Jack-hammer?
2. Could the noise by the Jack-hammer alone or in a situation described
above cause such a damage to hearing.


Best Regards
Rahman Davoodi

__________________________________________________ _________________________
Rahman Davoodi
Dept. of Biomedical Engineering, 10-102 Clinical Science Bldg.
Univ. of Alberta, Edmonton, Canada T6G 2G3
Phone: (403)492-0723 Fax: (403)492-8259
Email: Rahman.Davoodi@ualberta.ca
Http://www.ualberta.ca/~rdavoodi/davoodi.html
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