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Discussion Starter · #1 ·
I have been reading posts for a couple hours and have not found a simple explanation of;


1) How does an HTPC make a better picture than a progressive DVD hooked up directly to a projector. I understand how a HTPC can improve an interlaced DVD. But if a DVD is recorded in 480p, how does a computer improve upon this?


2) What is "SDI"


I realize my statements reveal my ignorance, but this is how we learn.


Dan
 

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#1 HTPC can make a better picture (if the the internal scaller in the projector sucks as in most business projectors) by presenting the image at projectors native resolution.


#2 Serial Digital Interface.
 

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Discussion Starter · #3 ·
So, what you are saying is that the HTPC bypasses the projectors internal scaler and does a much better job?


Does an SDI mean you do not have a conversion to analog and thus less degradation of picture?
 

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#1 yes it can (some projectors appear to force their own scaller regardless of the input, and some of the newer projectors just plain have good scalers) . I own a NEC LT150 which is a business projector (not sold as a Home Projector) with a lousy scaler. The HTPC gives a great picture on DVD.


#2 I do not own one, but the idea is that you can have an external device, such as a DVD player with an SDI port connected to an HTPC, also with an SDI port. Eliminating the analog conversion and possibly modulation onto a carrier. Goal being 100% digital from player to display device.
 

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Discussion Starter · #5 ·
Thanks JKaiser,


You answered my question perfectly. I have the nec lt 150 also. I am trying to figure out how to get the best picture at a reasonable cost. (i.e. I don't want to spend more than I spent on the actual projector) I am looking into the color wheel tweaks, etc by Ken et al. I am still not sure which way to go as far as scaler vs. HTPC. Computers and I don't get along too well. I think they sense my fear.


Dan
 

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Another newbie question. I presume a scaler has two functions: 1) it acts as a line doubler, and 2) scales up to the native resolution of your display device. Correct me if I am wrong.


So the question is does the dscaler program act as a better line doubler than ones in progressive scan DVD players? If so, would that be another reason an HTPC would produce a better picture?
 
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