DV Filesize after NV Processed

general questions about Neat Video
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slebreton
Posts: 3
Joined: Thu Dec 18, 2008 5:54 am

DV Filesize after NV Processed

Post by slebreton » Thu Dec 18, 2008 5:59 am

Is it normal for a processed dv clip filesize to be almost 10X larger? Example: NTCS 29.97 frames/sec 720X480 DV clip that is 11 seconds long is 41.6MB, then after processing that same file is 347MB

jpsdr
Posts: 196
Joined: Mon Aug 11, 2008 7:33 am

Post by jpsdr » Thu Dec 18, 2008 9:14 am

What are you using ? VDub ? Another ?
This is typicaly the size of an uncompressed video.
For exemple, with VDub, output is by default in uncompressed mode,
so, if you don't specify any output compression format, you have
an uncompressed video.

slebreton
Posts: 3
Joined: Thu Dec 18, 2008 5:54 am

Post by slebreton » Thu Dec 18, 2008 7:48 pm

Yeah that is corect, Using VDub with uncompressed DV from camcorder, then using NV filter the output is al,most 10X the original...

jpsdr
Posts: 196
Joined: Mon Aug 11, 2008 7:33 am

Post by jpsdr » Fri Dec 19, 2008 8:27 am

So, in that case, what is the problem ????

Your file size is normal for an uncompressed video.
I mean : 720x480x3x11x29.97 = 341801856, for video only.

Having the file filtered or not as nothing to do with it.
If you want a smaller file, select a compression codec in
the output format. If you don't want to have compression
artefec, use a lossless compression codec, like huffyvu
or Lagarith. Lagarith is a little better in compression ration,
but slower than huffyuv.

slebreton
Posts: 3
Joined: Thu Dec 18, 2008 5:54 am

Post by slebreton » Fri Dec 19, 2008 2:56 pm

The original clip before being processed with NV is also compressed DV avi, so I was just assuming after NV has removed the noise, it still would be the same size. BUt if its normal then its all good

jpsdr
Posts: 196
Joined: Mon Aug 11, 2008 7:33 am

Post by jpsdr » Sat Dec 20, 2008 9:04 am

Humm... A little explanation of how things works...
When you open a file with VDub, it decompress it for working.
After, it save it, but the saving process is totaly irrelevant from
the opening process. It's not because you have opened a DV
file, that you'll have a DV file in ouput. For this, you'll have to
specify in the compression settings a DV codec, if you have one.

So, yes, it's normal BECAUSE you haven't selected a compression
output format, wich is uncompressed by default.

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