i see... i wont know as im a 21 years old lol... one youtube video goes to 19k but didnt have any higher, i could hear it. i havent tried 20k yet. and if i remember right, my little brother could also hear it (which probably is no surprise because hes even younger than me) but my mom (50-ish years old) could also hear it...
You tube videos are terrible for this. The highly compressed nature of the sound means there's all manner of noise artefacts in the higher tones. You're probably not hearing the actual 19KHz tone at all.
This seems like a good place to ask, does anybody have issues hearing when surrounded by loud ambient noise?
For example if i am standing in the middle of a noisy pub i cannot make out what the person next to me is saying, it just gets lost in the background noise. But yet everybody else seems to have no problem communicating. Its always bugged me, does anybody else have the same issue? ...and no, more alcohol doesn't seem to help.
Not very scientific but by using test tones and a couple of different headphones i found my limits are ~16k -> ~20hz. Problem is i dont know if the limits are me, the dac, the amp, or the headphones..
It's very common, and I suffer from this too. The research I've done would suggest this is not a hearing problem at all, but a problem with the brain. Some people just find it hard to separate a single speech pattern from others in a noisy environment. Do some research on The Cocktail Party Syndrome. Some people can, some people can't. My hearing is fine, but I also have difficulty in that kind of environment.
Edited by pookeyhead - 10/23/13 at 11:08pm