Originally Posted by MediaFan63
Since I never used an HDMI cable before I just wanted something basic to run an initial test with. What I know is that HDMI resolution is a lot better than Component and the sound, I'm a guitar player so my hearing might not be as good as someone who has normal hearing, but it is better. So far for what I do the basic cable is ok. I record in HDMI so that's what I wanted to accomplish. My next test is to buy a cable one tier up and see if I can "see" the difference. Then I can post about it. I'm using a Samsung plasma Tv, my only Plasma so I have to base every test off of that.
Good information before this append by Otto, Joe and Colm. Let me expand on one thing - which is the "better" HDMI.
When you get bits into your source device, whether that is a shiny disc in the Blu-Ray player or a digital data flowing into your satellite or cable box, those bits are unchanged by whether or not you use HDMI or component video / analog audio output. Those bits are the input.
On the destination device side, at some point you have to convert to analog. The TV does this with the video picture before it gets displayed and the output from speakers is certainly analog (speaker cones really don't like step functions). So what happens in between?
With component video your player/set top box takes the digital audio and digital video input that we had as input and converts it to analog. The picture is now uncompressed and for HD can be 1080i or 720p (it actually could be 1080p, if permitted). For audio, the box converts the digital signal to 7.1-channel analog output (on some Blu-Ray disc players) or two channel analog or with satellite / cable boxes keeps it digital but sends it out the S/PDIF digital audio box. At no point is that signal converted to a lesser signal. The exception being for post-2010 Blu-Ray disc players, the component video outputs have been neutered to only allow an SD output.
With HDMI, the video signal is still converted. All devices use compressed (lossy) video as inputs. So for HDMI, the video is converted to a uncompressed signal, sent over the HDMI link to the TV who then converts to analog and then displays the picture. The audio can stay in the same format it was received or converted to LPCM uncompressed output as well. Again, at some point it is all converted back to analog.
My point with all this is HDMI or not, there is no reason (other than legal) that component video along with 7.1-channel output can't look and sound identical to the HDMI version. It actually used to be that the HDMI picture was inferior to the component video because early HDMI conversions weren't that good. Now HDMI is usually much easier to setup properly than component and obviously the industry would like component to fade away.
Hope that helps in understanding how the video and audio data is transferred and converted.
I do have one question, though. What did you mean by "I record in HDMI"?