VBR vs. CBR

Discussion in 'MPEG-1 and MPEG-2 encoding (AVI to DVD)' started by skins38, Jul 3, 2002.

  1. skins38

    skins38 Member

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    I'm wondering if I should be using VBR or CBR. Now I know VBR is way better for quality but what if I'm starting with a low-quality AVI?

    I have a sopranos collection, all around 50mins, about 200mb avi's. Obviously the quality isn't that good, and there's quite a bit of noise and pixelation. From 1 to 10 I'd say the quality's around 6 or 7, so not too bad.

    My question is that with a mediocre quality source video, is there any point to using VBR or would I be better off spending the extra time applying a reduce noise filter?

    Also, if anyone thinks they know the best settings for reducing pixelation in TMPGenc, considering both time & quality, let me know(High Quality Mode?, still picture and range settings? Time Axis? Sharpen Edges?)
     
    Last edited: Jul 3, 2002
  2. jnihil

    jnihil Moderator Staff Member

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    Hi. From the size and length of the files you mention it sounds like VCD would suffice (CBR). But if you have much pixel noise on the source video I recommend trying out the Smart Smoother filter (http://sauron.mordor.net/dgraft/hiq/smoothhiq.html). You can resize, apply this filter and frameserve via VirtualDub, then encode to mpeg1 using TMPGEnc.

    I used to use the noise reduction filter for TMPGEnc (which is excellent), but it's so damn slow I switched to offloading filtering to VirtualDub...
     

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