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General audio topics that don't fit into specific categories.

RE: "People stream for background music." ....................

Y'all, I still do not understand much about the allure of vinyl. The high end not being cut off as if with a knife might have something to do with it, but usually there are imperfections.

I am not sure how many people can actually hear it but nothing really impedes the high end like on a CD.

Now if your cart and stylus are flat to within +/-2dB to 20KHz, there is of course some response above that. In a CD everything above 10KHz, by necessity is only a sine wave because of the filters. If you use the most advanced, and I mean like NASA, filters the best you can do is 22.05KHz. Remember CD4 records and carts that went up to 35KHZ or so ? The 2X7, the Shibata.

So general logic will tell many people that your ears can't tell the difference above 10KHZ because you can't hear the harmonics.

Well maybe it is time to challenge that. Find a guy with really good ears and get a function generator. See if he can tell the difference between a 15KHz sine wave and a square wave. Despite sidestepping my science, I believe some people can. You know even with the limitations of human hearing, which is not cut off razor sharp and I think some people can hear it.

So to get that some people might be willing to put up with other imperfection. Forget TT rumble, you know that vinyl sound you get sometimes.

You know, some people can see a wider range of light than most. Actually UV is what I read about. One friend of mine, even though in later life he needs glasses, can see in the dark. Seriously, we were walking around in the stix and he had no problem, I was totally blind.

So you cannot take as gospel that you hear from Hz to Hz or that you can see from X angstroms to X angstroms. Different people are different.

The next best reproduction you can get is probably reel to reel at at least 15 IPS. Those usually have about a 100KHz bias for recording which means the filter can let out more than on a CD.

So I tried to bring science into this hope I didn't bore you.

But let's ask this. Perhaps you had a hearing test. Did they test above 20KHz ? No way. Maybe what we need is hearing test for people with good hearing, find out just how good. Seriously, any hearing test ever even throw you 22KHz ? I kinda doubt it. Those tests are for hearing deficiencies, not hearing efficiencies.

Now seriously, some here have a function generator. Seriously set that thing to 10KHZ and find out if you can hear the difference between sine and square. You will have to apply gain correction to bring the RMS level equal. That might be easier said than done but I might come up with something.


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