Need good quality with low bitrates

Hello All, I've been away from the scene for a while and I'm seeing allot of new filters and resizers about. I was just wondering if I could get some reply's including scripts for getting the best quality with low bitrates converting NTSC DVD to SVCD.(something that will give me a crisp picture, no macroblock and no masquito) Thanks

I think this it's all that all we want. Try using convolution3D, I thinks it's the more complete filter or at least a very very good filter preserving details and removing noise. search about it in the forum. Maybe it's the only filter you have to use or at least you couldn't improve your encode using more filter much more.

An approach to quantifying quality 

Thanks, I'll check it out :)

Ok, thanks, that clears some things up :) Have you had a chance to test with LanczosResize + Convolution3D? I did a few small tests and the video seems to look pretty good (TEST= CVD @ 1000 bitrate w/CCE) Real sloooow though :( I was usually using SimpleResize + TemporalSmoother at these low bitrates.

I had origianally posted this in the AVISYNTH forum but it was moved. I'm using CCE with Andrea's matrix.

Holomatrix: Have you had a chance to test with LanczosResize + Convolution3D? Yep. I usually use that combination (possibly with MSharpen too if necessary). I find that the recommended Convolution3D(0, 4, 4, 4, 4, 2.8, 0) is great for DVD rips, but tend to use Convolution3D(1, 8, 16, 8, 10, 3, 0) for TV caps. VHS caps are even more noisy and seem to require stronger settings still. Holomatrix: I was usually using SimpleResize + TemporalSmoother at these low bitrates. SimpleResize introduces too many artifacts for my liking. I never really experimented with TemporalSmoother. TemporalSoften seemes to work just as well and is a bit faster. Take a look at Cnr2 as well.

Bonzo: First: PAL SVCD resolution is 480x576 - NTSC SVCD = 480x480, so 576-480=96 extra vertical lines (not 48 as i've seen 2 times in this thread) I was talking about VCD resolution, 352x240 as opposed to 352x288. Bonzo: My player CAN'T play smoothly 23.976fps SVCDs, it plays fast-slow-fast-slow all the time, but works fine with 29.997fps (native or via 3:2 pulldown) Interesting, I'll have to try that with mine. I'm guessing that 25fps would play properly on (possibly signficantly) more standalones than 23.976. Bonzo: Anyway, if you really want to make PAL SVCD from NTSC, you will have to convert the video to 25fps (easy if you have 23.976fps or 29.997fps not badly telecined) and convert the audio with BeSweet (23.976fps to 25fps conversion). Yep, I've got frame rate conversion down. What I'd probably do with telecined material is Telecide.Decimate to 23.976 and then AssumeFPS to 25. Apparently this is what broadcasters in PAL land usually do when they show movies on TV, so I'm assuming the speed-up won't be noticible. As far as pure interlaced stuff goes, I do handle some of this from TV captures and footage from my camcorder. I think the first thing I'd try is a simple ConvertFPS. I do this regularly with 29.97 pure interlaced to 23.976 and it works remarkably well, at least to my unsophisticated eye :)

Holomatrix: NTSC VCD is 352x240 23.976fps ...or 29.97 :) Holomatrix: Here is my script, thanks for all the help :) You might find it's worth comparing the results of using Convolution3D before and after the resize.