Paralleled HDMI Cables Connection Improves Video Quality


I obtained two female HDMI Y-splitters and used them to connect my Oppo BPD-83SE Blu-ray player to my UHD/4K monitor using two inexpensive, 6’ lengths of 4K HDMI cable from CZoom.

The resultant Blu-ray DVD video presentation yielded improved resolution and enhanced color contrasts with this configuration. The change in video quality was like going from 2K to something much higher than 2K (2K+). I don’t know if audio quality improved, as I haven’t connected my monitor to external speakers, home audio or video system. I’ll see whether the paralleled HDMI cable connection improves video quality from an UHD/4K player with an UHD/4K Blue-ray DVD.

This connection is analogous to the Schroeder Method of IC placement, as discussed below:
https://www.dagogo.com/audio-blast-schroeder-method-interconnect-placement/

https://forum.audiogon.com/discussions/doug-schroeder-method-double-ic

The possibility that it worked at all in the HDMI context was surprising. And I’m using very inexpensive parts for this evaluation. CZoom 4K HDMI cables cost ~$15 per cable from Amazon and the HDMI Y-splitters ran ~$8 per splitter from eBay. One wonders whether significant improvements can be wrought with better quality components or an integrated dual HDMI assembly. 

I would be interested in learning from others who try this technique. 

128x128celander

Showing 2 responses by teo_audio

Settling time on receiver chips can stabilize framing to some degree. It is similar to the jitter problem with digital audio.

The eye can apparently see this, as video is a thing built up out of a very complex scenario for a very complex device called the human eye.

Eyes, like ears and brains, are an individual difference package. One can see and hear and ruminate differently than another. IQ, earQ and EyeQ? Yes, a known set of parameters. Differences in all. If one can see it and another can't... but that latter one can move numbers around on paper, well, that's not a solution to an astute observation. It's denial via the tool at hand. Dogmatism piles rolled forward. 

There are reams of articles about how HDMI improvement aspects of any kind can’t possibly be true.... but not one whit of it goes after anything other than a paper based number analysis of engineered hardware... and bits being bits.

None of that... takes into account the other 50-60-80% of the over arching complexity of the scenario. You know, all the real world stuff.

It’s more like an angrily and confusingly asked question - than an answer to anything. (just hit it with the hammer you’ve got)

The monkey, prior to the development of the tool? He’s still in there, at the root of it all, in humans. Still angrily banging the coconut against the rock. The development and application of intelligence is core to the act of getting past that.


Hint: the human eye is very temporally sensitive. (a re-iteration of the opening bit in my prior post)