Ati Tv Tuner

[TrueEevil]

I just got a Tv wonder remote control edition for my birthday and after installing it i find that in a small screen its fine but anything bigger than say 5" on my 17" dell flat panel is nocicably blurry. i dont even want to think about full screen.

Could the problem be the drivers or maybe the quality of the tuner. or in the worst case, my moniter. Any input would be great. thanx.

 

[imported_Kensai]

Hmm. Maybe just a low quality tuner.

 

[Jon855]

What kind of model of Ati tuner are you using? There are the higher end version, maybe you got the low end ones?

 

[kylebisme]

When you strech a 640x480 to fill a 1280x1024 screen it is either going to have to look blocky or fuzzy, most people will argee that fuzzy is the preferable choice.

 

[clickynext]

What TheSnowman said is true, all TV tuners look rather blurry on computer monitors when compared to TV. It's simply because TV signals are blurry by nature, and it becomes apparent when displayed on a crystal clear computer monitor. Think about this, you (if you know what's good for your eyes) sit relatively far away from your TV while you're watching. But you sit very close to the computer monitor. If you moved away from the computer monitor to your normal TV viewing distance, it will seem pretty much the same as a regular TV.

TV Wonders are generally said to have rather poor quality as well. However, this should not make a drastic difference, only a midly noticable one at most.

 

[Peter]

Yes. Figure this: TV signal has a brightness component ("Luma") bandwidth of roughly 5 MHz, which allows for about 360 pixels across, given the 15.7 kHz horizontal scan rate. Color resolution ("Chroma") is even less. NTSC has 480 display lines, PAL has 576. Now if you look up close on a good sharp computer monitor, that'll look bad - because it is. If you're scaling that up to fullscreen on a monitor made for 130 to 170 MHz bandwidth signals, then that'll reveal every bit of low resolution, low bandwidth and low detail contrast. This is all inherent to how the TV signal provides the picture.
Video scalers can either upscale Lego style and look blocky in favor of preserving pixel-to-pixel sharp edges, or interpolate to make things look smooth - at the expense of blurring fine detail. Now since there cannot technically be any fine detail in a TV transmission, video scalers usually go for interpolated and smooth.

So why does it look better on a TV set? It doesn't. You just don't notice because their tubes are drastically lower resolution, and because you're sitting much further away from it.