Noise, Noise, Noise, Noise!

[homerpez]

Heyya.

I'd like for folks who know more than me to post their findings on what works and what doesn't in the way of noise reduction of home-made captures. Especially those who own ATI boards.

I'm doing some TV captures, and I'm doing some DVD rips. And there's a definite difference between the TV captures and that. The TV captures, once finally encoded to VCD, have quite a lot of noise compared to the rips.

The capture settings are set to 4.08Mb/sec variable MPEG-2, which is theoretically good, and the Motion Estimation set to 75 (on the good side). The ATI board does seem to do a very good quality, I think this is just a native problem with capturing any NTSC TV signal (there will always be some noise there).

So... now my open-post question. What's the best way to eliminate it? Settings in TMPGEnc? More Motion Estimation?

Let the journey begin...

[next]

Your DVD source is significantly better than your TV captures. Hense your results. There are external noise filters available. Are you using coax in? S-video in? Composite?

Try this:

Run regedit - go to HKEY_CURRENT_USER\Software\ATI Technologies\Multimedia\Features\TV\Video

You will see folders for s-video, composite, cable. Open the one you are using for your capture. Now look for "Noise Reduction". Right click it, click modify, click decimal, and change the value from 0 to 1.

I'm not sure if you'll see improvement but it's worth a shot.

Forgot to mention - this is for MMC 7.1

<font size=-1>[ This Message was edited by: next on 2001-07-02 05:53:58 ]</font>

[homerpez]

Sure is a pain that MMC doesn't have features like this visible on the menus... I'll try that...

Thanks...

[patrickm]

for TMPG's NR, i generally go with 5/1/16, but what i found out recently is that you really have to know your destination platform pretty well. i had made some SVCDs that i tested out on my brother's pioneer 525, then i got myself a 343 (newer one), and this applies some sort of smoothing filter of its own, so now some of those discs look way over-softened. but i think you want to stay with a smaller spatial range to avoid too much blurring, and the temporal filtering makes all the difference, especially with my ATI board (128 Pro). you almost always get some high-frequency time-based noise from frame to frame no matter how high you set the bitrate.