Edited wmv clips: video freezes for 1 sec

  • Thread starter Thread starter frogman
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frogman

I am editing fairly large .wmv clips by using the "split"
function but I find that the new clips tend to freeze the
video for 1 second though the audio seems to be OK. I have
edited with the split function in the past with .mpg files
with no video or audio freezing/lag.

I am using WMM 2.0.3312.0 on a P3 1GHz/Windows XP with
1.25Gb of system memory. The wmv files are in very high-
resolution (1500kbps bit-rate) and are typically 650Mb
large.

Any thoughts?
 
Hi there,

As no one told you....The split function does not actually split
anything at all. It is simply an entry in a database that marks the bounds
of the various clips. If you are getting bad response at these locations it
suggests that the drive heads are having trouble keeping up. That can be for
a variety of reasons, but to re-iterate, splitting a file has no
effect...you will still be reading one continuous file.

Best Wishes.....John Kelly
www.the-kellys.org
www.the-kellys.co.uk
 
Thanks, John. That's what I suspected...is there a better
way of creating clips from imported video files
(esp. .wmv)?

I will also try and render the final movie and see if that
helps.
 
Hi there,

There are a few things you could try...

1) Defragment the drive. Take note that the XP defragmenter does not
defragment the free space and therfore creates pockets of clear space that
will cause your drive heads to leap all over the place when it is saving a
large file to disk such as in the process of captureing video. I have
Symantec's System Works which has a good defragmenter (One of its features
is the ability to save certain files either at the very end of the drive or
at the end of all the other files or at the very begining...if you take this
route put all of your exe, com, inf, sys etc files at the front of the drive
and all of your video's at the end of all of the others or right at the very
end of the drive...that will make the drive perform a little better for you)

2) If possible use a drive for your video that does not have a pagefile
(Virtual Memory)

3) If size is a problem and you have a second drive, put the page file on
the small drive and the video on the other

4) Instead of using one large file to work from you could save your clips as
files and then work from them. I'm not sure that that is a good idea, but as
you have tried it the one way then why not try it the other. So, select the
first clip and save that as a movie in its own right. Repeat that untill you
have them all saved and then import them back into Movie Maker (You can drag
and drop them all into one common collection for convenience)

--
Best Wishes.....John Kelly
www.the-kellys.org
www.the-kellys.co.uk
All material gained from other sources is duly acknowledged. No Value is
obtained by publishing in any format other peoples work
 
Thanks, John.

I don't think it's (1) as I have put in a fresh drive and
it's still the same. I will try (2), (3) & (4) and come
back with results.
 
Hi again,

One other (very small point) Turn off Disk Indexing for the target drive.
Apart from it taking mountains of space it occupies the very front of the
drive making the heads move quite a bit further than they really need to.
My system has no disk indexing at all and as a result does not expend any
valuable resources in maintaining one. If I have to wait a few seconds more
when I do a search, that's fine.

--
Best Wishes.....John Kelly
www.the-kellys.org
www.the-kellys.co.uk
All material gained from other sources is duly acknowledged. No Value is
obtained by publishing in any format other peoples work
 
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