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  1. Member
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    Oct 2001
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    Portland, OR
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    I just captured my second hour-long .avi with Vdub (actually, 41-44 minutes without commercials.) The first one I captured off my PVR, 480x480, all the standard settings as put forth in the how-to guide. The .avi came out to be 44 minutes (13GB and change and the resulting MPEG was 799.5MB. By the time I added menus and burned the bin it came out to be 820MB and I was barely able to fit it onto an 80 minute disc.

    The second one I captured off a DVD player (not ripped, captured, same as I did with the PVR, using an S-Video connection) again, with all the same settings as outlined in the "how to" guide, with the exception that I clicked "enable noise reduction", because I was given to understand that noise reduction would save me some bandwidth and make the resulting file SMALLER. The resulting .avi was 41 minutes and almost **34** Gigabytes!!!

    YOWZA! The only things that changed between the two captures were the source of the capture and the noise reduction thing. Which of these explains the enormous file size of the second one and why? How else can I save bandwidth if I don't use the noise reduction feature?

    KSJ



    <font size=-1>[ This Message was edited by: KSJ on 2001-10-21 20:38:20 ]</font>
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  2. You most likely encoded using CQ, constant quality. When encoding high quality video from a DVD player the resulting file will be huge. Select VBR or CBR for more control over size.
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  3. Member
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    <TABLE BORDER=0 ALIGN=CENTER WIDTH=85%><TR><TD><font size=-1>Quote:</font><HR size=1 color=black></TD></TR><TR><TD><FONT SIZE=-1><BLOCKQUOTE>
    On 2001-10-21 20:51:39, skittelsen wrote:
    You most likely encoded using CQ, constant quality. When encoding high quality video from a DVD player the resulting file will be huge. Select VBR or CBR for more control over size.

    </BLOCKQUOTE></FONT></TD></TR><TR><TD><HR size=1 color=black></TD></TR></TABLE>

    I hadn't encoded at all yet. I'm talking about the .avi file that I captured prior to encoding. I used HuffyUV both times, did all the same steps and settings in VirtualDub. The only difference was that I enabled noise reduction and I was capturing off a DVD player instead of off my PVR.

    KSJ

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  4. Only the frame size, frame rate and color resolution will have an effect on AVI captures. If the settings are the same, the file size will be the same. Noise reduction will have no effect on the file size using uncompressed AVI. You most likely changed the color resolution or frame size on your second capture, the source will have no effect on the file size.
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  5. Member
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    Aug 2000
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    Upstate NY
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    Hey there...

    like other have stated, captured .avi's do not contain temporal compression so noise reduction will not affect them.

    If you do use Vdub noise reduction, make sure to turn it down to 6-10 clicks from the default of 16 ( overvelous ). You might be best off useing the noise reduction of TMPGenc under settings/advanced/noise reduction ( defaults are ok to start ).

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  6. Member
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    Oct 2001
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    Portland, OR
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    <TABLE BORDER=0 ALIGN=CENTER WIDTH=85%><TR><TD><font size=-1>Quote:</font><HR size=1 color=black></TD></TR><TR><TD><FONT SIZE=-1><BLOCKQUOTE>
    On 2001-10-22 11:39:54, snowmoon wrote:
    Hey there...

    like other have stated, captured .avi's do not contain temporal compression so noise reduction will not affect them.

    If you do use Vdub noise reduction, make sure to turn it down to 6-10 clicks from the default of 16 ( overvelous ). You might be best off useing the noise reduction of TMPGenc under settings/advanced/noise reduction ( defaults are ok to start ).

    </BLOCKQUOTE></FONT></TD></TR><TR><TD><HR size=1 color=black></TD></TR></TABLE>

    Thank you. I think what happened was that I forgot to select the HuffyUV codec before capturing. I don't know how I forgot, because I was documenting EVERY step of the process to kind of create my very own "complete newbie's guide" and I DOCUMENTED that step of the process, but maybe I was so busy documenting that I forgot to actually DO it, because I deleted that gargantuan .avi file and captured again and this time the same episode came out to be a much more reasonable 14GB. I'll have to play with Vdub a little more, because when I choose noise reduction, it was you checked it to enable it or unchecked it to disable it. I didn't see any settings for it, but I'm sure they're there somewhere.

    I know this is more an encoding/conversion question than capturing, but since you mentioned noise reduction in TMPGenc, I thought I would ask. I'm using CCE SP this time around. I had printed out the old guide, not the new improved guide, and sort of prefer that older guide, even though it seems to miss a lot of data, because I don't need to resize and the new guide seems to focus mainly on resizing. I just need to know, in the "Quality Settings" for CCE SP, there are two sliders. I don't have it in front of me, but the top one (Image Quality Priority) is defaulted to "25". Is this a good place to be? Image quality is fairly important to me, so should I bump this up? And if I do, which direction do I go in, toward "Flat" or "Complex". Seems like "Flat" indicates WORSE image quality, but it's to the right, and usually most slide bars go from left to right, worst to best.

    Also, the anti-noise filter slidebar is defaulted at 6. If I use this instead of noise reduction in Vdub, how far can I go with this to save bandwidth without losing my crispness or sharpness of picture?

    KSJ

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  7. Member
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    CCE SP..

    The image quality and noise reduction are wierd. The best explination of the flat/complex thing that I can com eup with is the following.

    Flat: Allocate more bits twards gradients or subtle details.
    Complex: Allocate more bits twards contrast and motion.

    25 seems to be a good and fair number for al of the stuff I have done. Any attempt for me to alter this to something else ususlly ended up being worse.

    The noise reduction even on it's highest setting does not appear to do much good whatsoever.

    Noise reduction in vdub is two menu items, enable and threshold. Edit the threshhold value to something lower as 16 is a little overzelous.
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