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Originally Posted by GeeVee3
Right... but at that high a frequency, the item producing the note.. the highest string of the piano... may only be putting out one or two harmonics tops. That brings us up to 15kHz at best. How much real music is up there at 5kHz? Now for a note of 880 Hz, there is plenty of room for harmonics to 5kHz. That is a pretty high A (the 60th key from the left). The standard A that is used for tuning in a band is 440 Hz. Most music is between 50 and 2kHz, again needing really only 1-3 harmonics for very decent fidelity... since it is recreated in the ear anyway!
To hear it in AM radio, it is assumed that they actually transmit it to begin with. Assuming that they transmit within the bandwidth the FCC regulates (in the US for foreigners), if you have ever listened to a crystal radio through a decent amplifier, it sounds pretty darned good for being limited.
But you know this. 
"The stupid one gets offended". No offense taken.
Gabe |
I have tapes of Melbourne AM stereo, thanks to my friend Ian, and even on a crappy recording of your 9 kHz channels (the international standard outside to North America for the most part, for us Americans and Canadians) it is simply wonderful also. Early US recordings on 78 rpm were mostly limited in their ability to reproduce over 10000 Hz and they tend to sound great (other than their condition) and remember that higher rpm=greater fidelity.
I will assure you that ANY 10000 Hz signal, mono or stereo, will sound much better than Realplayer ever will without major effort (that's how a local college gets the local signal to the sister almost 200 miles away). I wonder if high speed streaming is the only way it will work. I'll never know, as I despise Real's "security" issues and poor quality enough to avoid it, and any alt player I've tried won't play Real whether I want it or not. That leaves out almost ALL of your nation's streaming radio stations I'm afraid, which I really love to hear to correlate to what Ian and Robert used to tell me. Oh well,,,