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Converting AVI to MPEG

RobDickson
Grafter
Posts: 632
Thanks: 2
Registered: 06-08-2007

Converting AVI to MPEG

I've tried searching the forums, but can't find this question being asked before (although I'm sure it must have been). My new camera (Olympus Finepics Z3) takes high-quality video files, and it saves them as .AVI files. These files are quite large - for example an 8 second clip that I took of a kangaroo hopping is about 9MB:
Width: 640 pixels.
Height: 480 pixels.
Bit rate: 128kbs
Audio sample size: 8 bit
Audio format: PCM
Frame rate: 30 frames/second.
Data rate: 1142 kbs

I can change the picture size to 320 x 240, but don't think that I can change any of the other settings.

Last night, I started looking for an AVI to MPEG converter, and downloaded X Video Converter (http://www.download.com/Advanced-X-Video-Converter/3000-2194_4-10590664.html?tag=lst-0-1). This has the option to convert to MPEG-1 and MPEG-2, and also change the size, and change the frame rate as low as 23.97 fps.

Converting to MPEG1 at 320x240(30fps) created a 2.6MB file. Reducing the frame rate to 23.97 reduced it slightly further to 2.2MB. Surely I can get smaller files than that.

Does anybody reading these forums use an AVI to MPEG converter, and which ones do you use? I reckon I'd be happy to pay up to about $50.
2 REPLIES
RobDickson
Grafter
Posts: 632
Thanks: 2
Registered: 06-08-2007

Converting AVI to MPEG

The free version of Stoik Video Converter seems to do the job perfectly:

http://www.videohelp.com/tools?tool=Stoik_Video_Converter

It doesn't compress to MPEG files, but it does compress to WMV files.

Obviously the more it compresses, the lower the quality of the output, but it has lots of different options to control the amount of compression.

If anybody has any other suggestions, I'd like to hear them.
Walrus
Grafter
Posts: 394
Registered: 30-07-2007

Converting AVI to MPEG

You should also investigate MPEG4.

DiVX is the best known commerical product, and XViD it's free alternative.

MPEG4 is able to produce better quality results given the same file size as MPEG2. Similarly, for the same quality file, MPEG4 will be much smaller than MPEG2.

Don't let the fact it's 'still AVI' put you off, AVI is simply a 'container' for video and audio compressed by many different standards.

Also check out http://www.virtualdub.org/ which is a piece of software that allows you to independently select which 'codec' is used to compress video and audio within an AVI.