JaZZ
Headphoneus Supremus
Yes, in a rather crude way I did last year, it was by proxy using an AD stage from the analog output from a CD player and a variety of different cables. I also posted samples recorded from different cables.
http://www.head-fi.org/forum/thread/405217/my-cable-test-enterprise
I haven't followed your thread to the end, but I think it has produced some remarkable measuring results, particularly the difference signals – which are actually the only significant ones considering the limited graphic resolution.
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