Quote:
Originally Posted by jbjb
I've had a sales assistant try to convince me to buy an expensive HDMI cable because it would give "more saturated reds" than the cheap cable I was buying. This is clearly garbage.
/JB
|
Right. But I've been in forum discussions with folks who over-extrapolate that to the point of thinking that just because there may be no performance difference between a decent well made digital signal cable, and a stupidly-overpriced monster-ous cable, that there must also be no difference between a decent cable, and $1 bulk cable with poor shielding and bad solder joints. More than once I've seen people claim that those things don't matter in digital signals because "it's all just ones an zeros." They do not seem be aware of the fact that those ones and zeros are carried through cables in the form of purely ordinary, and sometimes quite sensitive, electrical signals.
Regarding computer data, real-time D-to-A streaming has different issues than, say, a block mode file transfer. A block transfer can do complicated check-sums, resend entire blocks and retry several times to ensure there is a bit-perfect copy at the end.
Realtime music and video playback is far more subject to small errors, but also more tolerant of them. For example, there is a big difference in the way audio is played from a CD in a standard CD player, compared to the way the same data might be read off the same CD when copied onto a PC.
Quote:
Originally Posted by jbjb
if there *is* a difference in the nature of the light, what is it? I'm stating my opinion to provide input to that discussion, in a spirit of interested scientific inquiry, not in an attempt to convince for any missionary purpose!
/JB
|
As a sometimes-photographer and lighting tech, I'm mostly aware of the subjective effect, not the true science, but I think it mostly has to do with amounts of diffusion, the different amount of specular reflection, the effect of scatter from angles of illumination off of imperfect surfaces of different materials, and the effect of those things on the illumination levels not only on, but surrounding the text and the contrast between them.