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  1. Member
    Join Date
    May 2005
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    israel
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    hi,

    i've just burned my svcds which coded by tmpgenc and i got a pixie svcds...how can i fix it without raising my bitrate?(means without raising my files size)

    *i've heared that raising the resolution have nothing to do with filesize...is it true?...and will it help making the svcds less pixies...
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  2. If you raise the resolution but keep the same bitrate, it will make the pixelation worse.

    It is the actual bitrate that governs what the filesize is. But the resolution of the picture is the canvass that the bitrate paints onto. The higher the resolution, the thinner the paint = more macroblocks (pixilation).

    Hope that this helps.
    Cole
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  3. Member
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    May 2005
    Location
    israel
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    Originally Posted by Cole
    If you raise the resolution but keep the same bitrate, it will make the pixelation worse.

    It is the actual bitrate that governs what the filesize is. But the resolution of the picture is the canvass that the bitrate paints onto. The higher the resolution, the thinner the paint = more macroblocks (pixilation).

    Hope that this helps.

    dosen't it should be - as resolution size goes bigger i will get more pixels which results in smoothest picture?...because the pixels size will be more little(like in games)...
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  4. Could you clarify what you mean by 'pixie'.

    What I understood that you meant was that you get alot of blockyness in the playback especially on movement.

    However, it may also help if you say what the bitrate for your SVCD is and it can then be judged if your bitrate is indeed high enough for the SVCD resolution.

    A standard SVCD with TMPGEnc will have a resolution of 480x480 (ntsc) or 480x576 (pal). A too low bitrate will result in lower quality.

    If you raise the resolution (which will become an XSVCD i.e. non standard SVCD) but keep the same bitrate, then the picture will definitly look worse not better.

    A higher res. does indeed mean more pixels but the low bitrate will have more space to fill and there won't be enough to go round - the effect being a further drop in quality.

    If you are wanting to keep a low bitrate (low filesize to fit onto one CD perhaps?) then I can only suggest that you try a VCD as although not as good as a SVCD, the smaller resolution will deal with a lower bitrate better.
    Cole
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