What Is a Good Hearing Test Result?

[markoana]

Hi, I was going from all over the internet but did not find answer to my doubts.

What is good hearing test (results) for person in 20' 30's, 40'.

As many of u, in my country there are not audiogram tests over 8 khz. So when I found this page with hi freq test http://newt.phys.unsw.edu.au/jw/hearing.html I was not impressed with my results, so i tried to find what are good results in these by age.
In this research http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2804091/ which is I suppose good reference,
it is statet for t people http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2804091/table/T1/
and some kind of compare http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2804091/table/T2/

Secon research that I find was this one http://www.internationalarchivesent.org/additional/acervo_eng.asp?id=299

Is states this:

Female ears : 30 dBSPL in 8,000 Hz; 35 in 9,000 Hz; 45 in 10,000 Hz; 50 in 11,200 Hz; 55 in 12,500 Hz; 75 in 14,000 Hz and 95 in 16,000 Hz.

For males, since there were no difference between the ears, we present the upper normality limits for both right and left ear as follows: 30 in 8,000 Hz; 30 in 9,000 Hz; 35 in 10,000 Hz; 42,5 in 11,200 Hz; 45 in 12,500 Hz; 60 in 14,000 Hz e 85 in 16,000 Hz,

Does anyone know, are those results and research correct and realistic? It seems like its is normal to hear lower at those high freq?

Thanks

 

[linearb]

Higher frequency noises at the same dB level have less ability to vibrate your ear drums, so yes, it would not be unusual to have a higher dB threshold for hearing high frequency noises.

30 db at 8,000 doesn't sound "normal" to me, that sounds like a sign of considerable hearing loss. 8khz isn't that high, and 30db is pretty loud.

 

[markoana]

Higher frequency noises at the same dB level have less ability to vibrate your ear drums, so yes, it would not be unusual to have a higher dB threshold for hearing high frequency noises.

30 db at 8,000 doesn't sound "normal" to me, that sounds like a sign of considerable hearing loss. 8khz isn't that high, and 30db is pretty loud.

Yes @linearb u are right 30db at 8 is a high , maybe the second table where are t. people compared with ones without t. is more realistic, it is written at 8.000 27+- 7, so 20 khz is somewhere at the edge and it can be considered as normal for 30+ male.

But what about other - real high (over speaking range) frequencies, 10, 12, 14, 16...what are good results?
This two research are the only one that i could find... and there are stating at 16 khz normal is 70 to 85 db. Is that realistic?

It si little strange that we do not know right references about normal hearing in those freq....

 

[linearb]

I think the conventional wisdom has been that those frequencies don't matter much because you don't need them for speech. I think they do matter, and that deficits there are probably often the beginning of deficits in lower frequencies.