Proof of Cable Quality as Spearheaded by Game Boy Interface

[NewSchoolBoxer]

https://www.gc-forever.com/wiki/index.p ... eo_quality

This is amazing. Take a colorful computer image as the control then transmit it down Composite, S-Video and Component cables and perform Structural Similarity and Signal to Noise Ratio tests to objectively PROVE which maker's cables are better. Test infamously rare and expensive GameCube Official Digital Component against modern equivalents. Start your own cabling empire? Can prove they're just as good as the competition and smack down the $10 Composite + S-Video packages.

Why aren't we doing this?

Some figures from the link:

Cable Make and Type............................................................Peak SNR
GCVideo-DVI v3.0 and later.......................................................32.208178
EON GCHD Mk-II v2.4c.2 + HD Retrovision Wii Component Cable...30.922875
EON GCHD Mk-II v2.4c.2 + HDMI Cable......................................30.832364
EON GCHD Mk-II v2.4c.2 + Datel Wii HD Component Cable...........30.789679
HD Retrovision SNES Component Cable......................................30.766373
Nintendo GameCube Component Video Cable..............................30.409172
Generic S-Video Cable (NTSC-J).................................................27.243526
Nintendo Stereo AV Cable (NTSC-J)............................................25.914712

I hadn't heard of Structural Similarity before but Signal to Noise Ratio (SNR) is a fundamental concept taught to all 2nd year Electrical Engineering students. [Electrical Signal Power / Noise Power] Noise is the sum of all electrical interference, such as from thin cables, crosstalk of Y and C and nearby appliances running with an electric motor. Higher SNR is exponentially better. A very good 30 dB signal is 1000x more signal than noise. Price you pay sending signal down a wire when highest quality VHS tape through S-Video had 47 dB for video and 90 dB for audio. Basic audio CD today is 96 dB for 90 billion times more signal than noise. There are more modern measurement tools such as NTIA General VQM that apply to video footage and not just a screenshot.