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Frequency hearing drop
eahm
post Sep 11 2012, 02:39
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"Hello doctors/experts,"

I read that the ability to hear high frequency sounds drops with time and age and I am aware that we have a range and I also saw graphs and documents about it.

My concern is about how the drop appears, does it change from where one lives? How much and how fast can the time/age drop? Does it depend to humidity? Weather (too cold, too warm)? Altitude? Bad habits (alcohol/beer, whisky etc., smoking/cigars etc.)? Most important, fatigue/not to much sleep (and probably still related to the weather being too warm)?

I am 30, can it be temporary and go back up during winter?

It's not a matter of life and death, I actually don't really care, the music is still good to me and if age does this it's ok but I was able to hear up to 17Khz let's say 5-6 months ago and now only up to 13Khz. Here in Phoenix 5-6 months ago was cooler than this very hot summer that's why I'm asking about the weather possibility. I've been in Arizona 6 years but I am not from here, I am from a small mountain town from the center-north of Italy, I have no idea what the desert can do to a person.

If anyone can answer, thanks.

This post has been edited by eahm: Sep 11 2012, 03:06


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slks
post Sep 12 2012, 08:40
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I have heard of loud noise from driving causing hearing loss - people who ride motorcycles, or convertibles, or even normal cars with the windows down at highway speed. My car is particularly bad in that regard. And it seems like the wind noise at 60+ MPH is especially loud at very low sub-bass frequencies which might be perceived as not very loud, when in fact there's a high sound pressure there. (Veering off into speculation now...)

I don't know that some iPhone app could be trusted with giving an accurate measurement of SPL. Even if you were to get an "offset" value from someone with an actual calibrated instrument, there's still a dozen different ways the value could be skewed between different phones. Different hardware revisions of phones that are designated the same "model", different firmware, perhaps OS or software settings (I have no idea how iOS handles this internally).

But certainly ear infections or wax buildup can cause a muffling of the ear. It could be worth looking into if you think your hearing is deteriorating.

Also - is the method you're using to test your hearing now, exactly identical to how you tested it earlier? I mean perfect. Same software used for testing. Same hardware. Same speakers/headphones. Exactly identical speaker placement and orientation. Even your head in exactly the same position (if you're using speakers). High frequencies are more directional than lower ones, especially with certain types of tweeters. So placement/orientation are very important for this test. Ideally you'd use headphones (with a known frequency response) so that the orientation of your ears to the drivers doesn't change.

If you're doing this via computer and not specialized hearing-testing hardware, that opens up an even bigger can of worms. In Windows there are typically multiple sliders used to control output volume. Other options that are non-obvious ("sound enhancement" etc) can possibly come into play. Even updating your sound drivers could potentially change things. If your volume level's changed for any reason over the months, it might not be valid to compare the two tests.

This post has been edited by slks: Sep 12 2012, 08:43


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Posts in this topic
- eahm   Frequency hearing drop   Sep 11 2012, 02:39
- - mzil   http://www.speechandhearing.ca/files/noise...ring%...   Sep 11 2012, 03:23
- - eahm   This is why I can't explain the amount of drop...   Sep 11 2012, 03:50
- - mzil   I've added to my previous post, so you may wan...   Sep 11 2012, 04:07
- - eahm   ...1 year ago we moved and the air conditioning is...   Sep 11 2012, 04:18
- - greynol   Congestion can cause temporary hearing impairment....   Sep 11 2012, 04:26
- - eahm   Thank greynol, I'll look into that as well...   Sep 11 2012, 05:11
- - greynol   You might find that you are allergic to the region...   Sep 11 2012, 05:35
- - AndyH-ha   I suspect that any self respecting professional is...   Sep 11 2012, 06:29
- - yourlord   I realized my hearing loss recently as well. Throu...   Sep 11 2012, 16:49
- - eahm   I will get my ears professionally tested, what I s...   Sep 11 2012, 17:53
- - mjb2006   I could be wrong, so correct me if I am, but I am ...   Sep 11 2012, 18:37
|- - probedb   QUOTE (mjb2006 @ Sep 11 2012, 18:37) I co...   Sep 12 2012, 08:04
- - pdq   Nonetheless, if the loss of high frequency hearing...   Sep 11 2012, 18:39
- - smok3   QUOTE (mjb2006 @ Sep 11 2012, 19:37) I co...   Sep 11 2012, 19:05
- - slks   I have heard of loud noise from driving causing he...   Sep 12 2012, 08:40
- - IgorC   QUOTE (eahm @ Sep 10 2012, 23:39) It...   Sep 13 2012, 04:58
- - m00k0w   This is a very important topic to us. Rarely I sto...   Nov 15 2012, 09:01
- - DonP   I've seen reports from surfers and whitewater ...   Nov 15 2012, 14:11
- - Mach-X   The funny part is your brain/ears continually adju...   Jan 14 2013, 07:55
- - eahm   That's in fact what I am thinking, my hearing ...   Jan 14 2013, 08:08


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