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Unofficial VirtualDub Support Forums > Advanced Video Processing > Home Video Quality Issues


Posted by: sea4me Jan 4 2003, 01:53 AM
Hi,

Have tried a few times to produce an SVDC with good quality.
None of my attempts so far can be descibed as very successful.

Problem is that the s-vcd is sort of blocky specially when there is a lot of movement.

There doesnt seem to be any interlacing problems and everything else looks normal. I remember having read somewhere that home tapes are difficult to get good quality because its hard to keep the camera still when capturing.

The original source is an analogue tape. Converted with TMPGEnc with max constant bitrate and at best(slowest) conversion.

So the questions are as follows :
Is this caused by insufficient datarate when converting from avi to mpeg?
If so, will the result be better if i make an ordinary vcd?
Is there a way around it?
I have a pioneer DVD 343 player which may be able to cope with higher bitrates. Is it adviceable to try it?

Please help


Posted by: ChristianHJW Jan 4 2003, 08:58 PM
Stop converting your AVIs to VCDs/SVCDs and buy a MPEG4 capable standalone instead, like the

KiSS DP 450

or the

Neuston DVX 1201

wink.gif wink.gif ....

Posted by: sea4me Jan 5 2003, 12:58 AM
Hi,

That sounds a bit drastic.

Would u care to broaden my horizon.

Sounds like your conclusion is that vcd/svcd is just to forget for home video purpose.

What about my ?? Am I way off ?

Neverheard about MPEG-4 standalone. Would my problems vanish if I get a DVD burner?

Posted by: fccHandler Jan 5 2003, 04:47 AM
QUOTE (sea4me @ Jan 3 2003, 09:53 PM)
Have tried a few times to produce an SVDC with good quality.  None of my attempts so far can be descibed as very successful.

Same here. IMHO, SVCD is not a good choice for VHS source.

QUOTE
Is this caused by insufficient datarate when converting from avi to mpeg?

Yes, and unavoidable VHS noise. But VirtualDub's own "temporal smoother" filter can perform wonders at settings around 3-4.

QUOTE
If so, will the result be better if i make an ordinary vcd?

I believe so, but it's all relative. VCD has "worse" resolution at 352 x 240, but the bits-per-pixel ratio is about 24% higher, so you should get "better" reproduction and less blocks.

QUOTE
Is there a way around it?  I have a pioneer DVD 343 player which may be able to cope with higher bitrates. Is it adviceable to try it?

I doubt that it would work, as the maximum bitrates for VCD and SVCD are pretty much set in stone. But if you do try it, use a CD-RW and you won't lose anything if it doesn't work.


Posted by: sea4me Jan 5 2003, 10:03 AM
Thx for taking the time to enlighten a rookie.

Just another question.

Will a DVD burner improve the quality a bit a lot or?



Posted by: fccHandler Jan 5 2003, 04:19 PM
QUOTE (sea4me @ Jan 5 2003, 06:03 AM)
Will a DVD burner improve the quality a bit a lot or?

If you are talking about creating true DVD content (VOBs and all), then yes, the quality will be much better.

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