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#1
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Hearing loss
Brenda Ann wrote: -- Say no to institutionalized interference. Always good to limit one's exposure to overly loud sounds.. but one must also remember that there is natural loss of high frequencies as we age. Teenagers are taking advantage of this fact now with their 17KHz ringtone, which the average person over 30 cannot hear. http://graphics10.nytimes.com/images...ng-graphic.gif Thought you might enjoy this link sent to me by the speech pathologist. http://www.audioxpress.com/magsdirx/ax/addenda/Bell-Loudness.pdf Show how linerar addtion of sounds results in non linear perceptions. |
#3
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Hearing loss
David wrote: You're adding logarithms. no? http://www.rane.com/par-a.html Not really. It shows that intensity effect percieved pitch and that when adding equal non reinforcing tones the results depart from what would be expected. What, to me at least, makes this even more interesting is the date the research was published, Jan 1935. In 1974 at college I took a course on the physics of music and musical instruments. The course ignored the whole louder sounds sharp, softer sounds flat issue. Terry |
#4
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Hearing loss
I didn't go to the food store yesterday for food. (and beer,if I want
beer that bad,all I have to do is step over to the Exxon convenience store/gas station about one block from me.I haven't had a beer in about a week) I will go to the food store tomorrow though (and the discount tobacco store) because I have just enough cigarette tobacoo to last me about twenty four hours and the same with my mostly empty jar of Folger's instant coffee.I can do without my beer,but I can't do without my coffee.I tried that once before. My hearing cleared up (mostly cleared up) a few days ago. cuhulin |
#5
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Hearing loss
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#6
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Hearing loss
My electric fan running on the end table (it's warm enough in my house
to have my airconditioner turned on) by doggys end of her couch (looking at the front of her couch,the middle and left end is her end) and Katrina: The Long Road Back on NBC Radio tv. cuhulin |
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