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Jerky looking video

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August 4, 2004 11:25:22 AM

Archived from groups: rec.video.desktop (More info?)

Hi,
I volenteered (quite foolishly) to make a wedding DVD from 2
different films recorded on 2 different camcorders.

So I've been and got myself a copy of Ulead VideoStudio 7 as it was
reccomended and a capture card, I've sucessfully captured the video
footage on to my pc in 2 different mpeg files, and thses files play
brilliantly, although they are well over a gb each (about 47 mins of
footage each).

I have sucessfully edited the footage / overlayed titles / audio /
pictures and all looks dandy, but when I finally render the video,
either direct to DVD or to mpeg format file, it's jerky, sorry i cant
be any more technical than that, but i am new to this.

The system I am using to edit / render is an AMD 3GHz processor, 1GB
Ram (DDR 333), 80GB hard drive 7200 RPM, Radeon 9700 graphics card,
Windows 2000, DVD burner on firewire connection and all the usual
bits and bobs etc...

If anyone has got any ideas as to why the file is slightly jerky could
you let me know as i am baffled, could it be the software im using?

Many thanks for your help.

TIA

Alan

More about : jerky video

Anonymous
August 4, 2004 12:48:04 PM

Archived from groups: rec.video.desktop (More info?)

On 4 Aug 2004 07:25:22 -0700, ayoung@scholastic.co.uk (Alan) wrote:
>So I've been and got myself a copy of Ulead VideoStudio 7 as it was
>reccomended and a capture card, I've sucessfully captured the video
>footage on to my pc in 2 different mpeg files, and thses files play
>brilliantly, although they are well over a gb each (about 47 mins of
>footage each).

MPEG is an OUTPUT format, meant to be played and not edited

Read here - http://tangentsoft.net/video/mpeg/edit.html

>I have sucessfully edited the footage / overlayed titles / audio /
>pictures and all looks dandy, but when I finally render the video,
>either direct to DVD or to mpeg format file, it's jerky, sorry i cant
>be any more technical than that, but i am new to this.

You are taking an already COMPRESSED format and then doing yet
another compression operation to create a new file

You need to go to http://www.videohelp.com/ and read the software
reviews to see if there is a product which will allow you to edit
an Mpeg file and then create a new file without recompressing

>If anyone has got any ideas as to why the file is slightly jerky could
>you let me know as i am baffled, could it be the software im using?

I don't use Ulead, so have no idea if it is DESIGNED to edit an
Mpeg file, or if it will edit but poorly


John Thomas Smith
http://www.direct2usales.com
http://www.pacifier.com/~jtsmith
Anonymous
August 4, 2004 4:33:28 PM

Archived from groups: rec.video.desktop (More info?)

When encoding the video from .AVI to MPEG2, raise your data rate
up to the 6500 - 8000 Kbps range.
I seriously doubt that it's field order problem.


ayoung@scholastic.co.uk (Alan) wrote:


> Hi,
> I volenteered (quite foolishly) to make a wedding DVD from 2
> different films recorded on 2 different camcorders.
>
> So I've been and got myself a copy of Ulead VideoStudio 7 as it was
> reccomended and a capture card, I've sucessfully captured the video
> footage on to my pc in 2 different mpeg files, and thses files play
> brilliantly, although they are well over a gb each (about 47 mins of
> footage each).
>
> I have sucessfully edited the footage / overlayed titles / audio /
> pictures and all looks dandy, but when I finally render the video,
> either direct to DVD or to mpeg format file, it's jerky, sorry i cant
> be any more technical than that, but i am new to this.
>
> The system I am using to edit / render is an AMD 3GHz processor, 1GB
> Ram (DDR 333), 80GB hard drive 7200 RPM, Radeon 9700 graphics card,
> Windows 2000, DVD burner on firewire connection and all the usual
> bits and bobs etc...
>
> If anyone has got any ideas as to why the file is slightly jerky could
> you let me know as i am baffled, could it be the software im using?
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Anonymous
August 5, 2004 1:25:20 PM

Archived from groups: rec.video.desktop (More info?)

Monkey Monkey wrote:
> When encoding the video from .AVI to MPEG2, raise your data rate
> up to the 6500 - 8000 Kbps range.
> I seriously doubt that it's field order problem.
>
>
> ayoung@scholastic.co.uk (Alan) wrote:
>
>
>
>>Hi,
>> I volenteered (quite foolishly) to make a wedding DVD from 2
>>different films recorded on 2 different camcorders.
>>
>>So I've been and got myself a copy of Ulead VideoStudio 7 as it was
>>reccomended and a capture card, I've sucessfully captured the video
>>footage on to my pc in 2 different mpeg files, and thses files play
>>brilliantly, although they are well over a gb each (about 47 mins of
>>footage each).
>>
>>I have sucessfully edited the footage / overlayed titles / audio /
>>pictures and all looks dandy, but when I finally render the video,
>>either direct to DVD or to mpeg format file, it's jerky, sorry i cant
>>be any more technical than that, but i am new to this.
>>
>>The system I am using to edit / render is an AMD 3GHz processor, 1GB
>>Ram (DDR 333), 80GB hard drive 7200 RPM, Radeon 9700 graphics card,
>>Windows 2000, DVD burner on firewire connection and all the usual
>>bits and bobs etc...
>>
>>If anyone has got any ideas as to why the file is slightly jerky could
>>you let me know as i am baffled, could it be the software im using?

I think it is the wrong field. same thing happend to me with ulead.
Change the field order in capture and future captures should work after
that, but what you have now will not.

GA
--
My address is spoofed, so do not reply directly.
Anonymous
August 5, 2004 9:30:50 PM

Archived from groups: rec.video.desktop (More info?)

On 4 Aug 2004 12:33:28 -0700, monkey_monkey_camera_boy@go.com (Monkey
Monkey) wrote:

>When encoding the video from .AVI to MPEG2, raise your data rate
>up to the 6500 - 8000 Kbps range.
>I seriously doubt that it's field order problem.

IMHO: Bitrate has nothing to do with jerkiness. If you take a
snapshot, and the bitrate is low, you shall see a bad image, but of
course no jerkiness. If you use a higher bitrate, the image shall look
better. Jerkiness is definitely a field order thing, unless he means
what happens when a very low framerate is involved.
August 7, 2004 8:21:08 AM

Archived from groups: rec.video.desktop (More info?)

The framerate is set to 30 fps, so i dont think it's that, i've also
tried it at lower framerates to test it, but it made no difference.

I shall re-capture / split / edit the thing from scratch, if nothing
else, it's good practive for me.

Well best be off, I've got alot of work to do.....

Thanks to all.

Alan.
Anonymous
August 7, 2004 11:27:43 AM

Archived from groups: rec.video.desktop (More info?)

Alan wrote:
> The framerate is set to 30 fps, so i dont think it's that, i've also
> tried it at lower framerates to test it, but it made no difference.
>
> I shall re-capture / split / edit the thing from scratch, if nothing
> else, it's good practive for me.
>
> Well best be off, I've got alot of work to do.....
>
> Thanks to all.
>
> Alan.

And change the field from a-b or b-a.

GA

--
My address is spoofed, so do not reply directly.
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