FBX wrote:I just did a video capture recording of my SNES using the RGB upgraded cable offered by Retro_Console_Accessories, and then a 2nd video capture using the official S-Video cables from Nintendo. Not only was there ZERO loss of channel separation on the RGB upgraded cable,
TL;DR: Your recordings actually prove RGB32E's statements RE: crosstalk correct...and also aren't good examples
of channel separation loss.
Long version -
Regardless
of technical side
of the argument, I am not certain that one can conclude that there is zero loss
of channel separation using these scenes from LttP as a demo as
the sounds are most likely not designed
to be 100% isolated in
the first place. It would probably be best
to use something
like a SNES Test cart (if it offers isolated sound tests) or some other cart that will do something along those lines in order
to check for stereo crosstalk.
I say that because you can definitely hear
the sword in
the opposite side channel from
the side
of the screen from which it was used. If those sounds were supposed
to be 100% isolated (which really isn't good sound mixing, imho), then there should not be any sound
of a sword in
the opposite channel. You could argue that Link can't technically stand 100% left or right on
the screen, but I digress...
Rather than compare
the Nintendo S-Video cable's audio
to the RetroConAccess cable's audio using Link
to the Past,
the best demo would probably be
to compare (if you are doing it by human ear alone - which you could argue is
the only relevant thing) using
the following:
1: A game or program that allows you
to pan 100% and/or test only a single channel
2: Record
the analog audio output using said test
3: Record
the digital audio output using said test (for reference purposes - could be audio has "issues" before
the DAC...however unlikely <shrug>)
It is quite possible that
the analog output
of the SNES has issues somewhere along
the path from
the DAC
to the multiout - in which case
the external cables used in
the equation are irrelevant.
but it actually outperformed the Official S-Video cable in terms of video cross-talk shielding on those audio channels.
It shouldn't be a matter
of one being better than
the other. There shouldn't be any video noise in
the audio. There is noise present in
the audio
of both recordings, and that is enough
to argue that shooting for something better is worth attempting.
Also note that if what RGB32E said about
the construction method
of the pro cables is true and
the audio L/R from
the SNES is transported in twisted pair...that is actually improper design for unbalanced audio (at least from what I have read in
the past).
I went
the digital route with SNES, so I personally can't offer any
of my custom cable work
of analog audio cables for SNES as an example by providing a recording. Again, it is possible that there are issues with
the audio prior
to the cable inside
the SNES.
