HDMI overrated?

PhilNUK

Active Member
well... just got a PS3 and was sick of having to swap the hdmi over to my PS3 all the time as I only have 1 HDMI input on my Bravia...

I decided to slap the component to my Sky HD box tonight.. rather than from my DVD player...

I just took a good long look at Aquaria Vision and the BBC Demo reel through both, constantly flicking between component and HDMI and there is absolutely no difference in PQ.... if anything Component is better because the sound comes through at a normal volume rather than the lower through HDMI...

anyone else feel the same? or do people see a difference?
 

arfster

Active Member
Using half-decent cables, there isn't much difference. A PC magazine did a similar test a while back, and found as much.
 

Starburst

Novice Member
anyone else feel the same? or do people see a difference?



HDMI is not only intended to provide a digital link (which in theory has benefits over analogue) but also the audio side and well lets be honest the industry wants the DRM the new single consumer friendly digital cable provides.
 

mmace

Active Member
i always view sky hd via component it gives me a far clearer picture over HMDI
but there's no widescreen switching with component, meaning you have to manually do it or have the 4:3 image incorrectly stretched making the image even worse
 

CDM

Standard Member
but there's no widescreen switching with component, meaning you have to manually do it or have the 4:3 image incorrectly stretched making the image even worse

On ALL Samsung TVs, there is no wide-screen switching over HDMI either.

I spoke to Samsung technical support about this and the told me that the image is always displayed as 16:9 because the incoming signal is a high resolution feed (or something of that ilk).

This means that 4:3 channels are stretches to fit the 16:9 size screen when viewed through the HDMI port and this is one of the reasons I don't watch HD content - can't tolerate having to 'do something' each time you swap channels to get the picture to look correct.
 

mmace

Active Member
are you sure the box is set to auto and not 1080i/720p?

1080i and 720p show 4:3 material wrong which is why a lot of people either avaoid 4:3 channels or stick to "auto"
 

simon194

Well-known Member
On ALL Samsung TVs, there is no wide-screen switching over HDMI either.

I spoke to Samsung technical support about this and the told me that the image is always displayed as 16:9 because the incoming signal is a high resolution feed (or something of that ilk).

This means that 4:3 channels are stretches to fit the 16:9 size screen when viewed through the HDMI port and this is one of the reasons I don't watch HD content - can't tolerate having to 'do something' each time you swap channels to get the picture to look correct.

If the source format is 576p then you can set the aspect ratio.

720p and 1080i you can't because the HD spec says all material in these formats is supposed to be 16:9, so no option isn't needed.
 

hutch

Distinguished Member
The only advantage of HDMI is that it carries sound also meaning one wire does all, I have never seen any difference between HDMI and Component.

And the only reason its being so widely adopted is down to encryption.
 

carldavis11

Standard Member
I saw a huge difference when I went from component to hdmi on sky, I admit I was using cheap component cables but even so the was a lot of difference. I would still like to use component through my sony amp so that I dont have to switch inputs on the telly as well as the amp. but I dont want to have to spend a huge amount on component cables when hdmi cables are quite cheap.
my tv is sony 46w2000 sony 3200es amp
Carl
 

Jay53

Active Member
CDM is correct in that Samsung have elected to ignore HDMI Aspect ratio switching (AR flag is optional in the HDMI spec) entirely regardless of input resolution. What they have instead provided is manual aspect ratio switching on component and HDMI sources.

So it make no odds what resolution you set the SkyHD box to as even Auto setting on SkyHD box will get formatted by a Samsung TV to whichever aspect ratio you have manually selected.

So set to Auto on SkyHD and 4:3 on Samsung TV's HDMI input you get

SD 4:3 at 576 pillarboxed (hurrah correct aspect ratio)
SD 16:9 at 576 pillarboxed (boo - tall thin people)
HD 16:9 at 1080i pillarboxed (boo - tall thin people)

So set to Auto on SkyHD and Widescreen on Samsung TV's HDMI input you get

SD 4:3 at 576 widescreen (boo - wide fat people)
SD 16:9 at 576 widescreen (hurrah correct aspect ratio)
HD 16:9 at 1080i widescreen (hurrah correct aspect ratio)

So set to Auto on SkyHD and Zoom on Samsung TV's HDMI input you get

SD 4:3 at 576 zoomed (top & bottom cropped but remainder of picture in correct aspect ratio)
SD 16:9 at 576 zoomed (top & bottom cropped remainder tall and thin)
HD 16:9 at 1080i zoomed (top & bottom cropped remainder tall and thin)


A bit pants but compared to others who's TV's see a HDMI signal and lock out any AR change its better than nothing.
 

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