Creating a video with images

kiwiinnz · Post by **kiwiinnz** » Mon Dec 18, 2006 3:59 am

Just wondering if it is normal for the size of a rendered avi with only a few small jpegs titles tranisitions and background music to be rendered at nearly 1 Gb in size ?

Am i missing something perhaps or is there a better way?

Any help appreciated

heinz-oz · Post by **heinz-oz** » Mon Dec 18, 2006 4:12 am

It's like asking if a glass of water should weigh 1/2KG. What type of AVI are you referring to? Why do you render to AVI if you only got images?

Post by **Ken Berry** » Mon Dec 18, 2006 5:43 am

Kiwiinnz -- you wouldn't happen to be a New Zealander would you??!!

Just to explain a little what Heinz is on about: .avi is a carrier format which is often used to wrap up a variety of other formats. The files can vary literally quite enormously in size, depending on that the true format is.

True or uncompressed .avi is truly huge: 65GB per hour of video.

Then there is DV/AVI, which is the format used in mini-DV digital video cameras. It is a compressed format but still large at 13 GB per hour of video.

At the other end, highly compressed formats like DivX or XVid are really varieties of mpeg-2, but use .avi as their extension. Although very highly compressed, they give good quality in a small size which varies, though roughly you can fit one hour of high quality DivX/XVid video onto a single 700 MB CD.

So yes, it is possible for a project you describe to take up 1 GB space if it is uncompressed or DV .avi.

But as Heinz said, if it is a slideshow of images, why are you using .avi in the first place for your render?

kiwiinnz · Post by **kiwiinnz** » Sun Dec 24, 2006 2:15 am

Thanks for the resonses, and apologies for the delay in reply

Firstly yes i am a new zealander , but don't let peter jackson know

The reason im rendering slide show file out to avi is becuase of the chaptering limitations with video studio , i.e once a chapter finishes i want it to return to the main menu not move onto the next chapter .

To achieve this im using Ulead DVD workshop importing the avi and setting up the chapter sequences manualy.

I did have some success by generating the video as an mpg file,in that it reduced the file size significantly how ever the audio was very distorted when played in workshop, so i export the audio track from studio as a wave file and attached it to the clip in workstation.

Crude but effective

If there's a better way im open to suggestions

Cheers

sjj1805 · Post by **sjj1805** » Sun Dec 24, 2006 10:45 am

You should be passing the MPEG file to Workshop rather than an avi because workshop will have to convert your avi to MPEG to create the VOB files.

Your workround with the sound is a valid option.
In fact my last project involved an analogue camcorder video and I forgot that the analogue camcorder was only in mono. After rendering the edited MPEG2 files I found I only had sound on the right channel so to save time I simply exported the audio as a wav file, used audacity to duplicate the right to the left and then did as you did, replaced the audio in Workshop. - Saved me a couple of hours rendering it again.

If you are having distorted audio when creating an MPEG2 from VideoStudio you probably need to alter the sound settings, perhaps to AC3 (Dolby) and double check the bit rates.