this isn't the sort of info you will find on this board.
you could try
http://audacity.sourceforge.net/ you just have to set a few things to make it display all the way up to 22500kHz in the spectral display (in the options).
You could also seek out an old shareware version of CEP2.0 there's a link posted in the first thread in the lossy or lossless forum here. when that prog expires you are still allowed to use the spectral view and frequency analysis altho pretty much everything else won't work after it expires, unlike Adobe Audition where nothing works after it expires.
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