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Just want to add extra audio track to existing AVI, but..
Hi folks,
I’m sorry to have to ask such a simple question, but here goes.
I have captured some raw video game AVI footage with FRAPS, and used Virtual Dub to compress it from 10+GB to a single 300MB AVI file. This AVI file includes in-game sound, but I wanted to add a second audio music track to the file. I read that Sony Vegas could do this, so I downloaded a trial version.
Problem is, I added 2 MP3’s of around 8MB total and then went to Save As, but found I could only save to a Sony Vegas project file. Then I read that Render As was something I could use to get an AVI file, but this managed to create a 2GB file.
So, my question is – how did a DivX compressed AVI file of 300MB balloon out to 2GB with only 2 MP3 songs added to it. Should I not have re-rendered? Should I be using other software to add this extra audio track instead. Any ideas?
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2 Replies
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Render As is the correct step. After you choose AVI for the filetype, you need to choose a template appropriate for the kind of file you want to render. Your file was 2GB because the default template (NTSC DV) is meant for broadcast or to be used for further editing, so it uses very little compression.
Ultimately, the rendered file size will be determined mostly by the codec and bitrate used. You can accept one of the standard templates (the description will usually give you an idea of what codec and bitrate is used for that template) or click the Custom button to specify yourself (after clicking the Custom button, select the Video tab).
If you select AVI for a filetype, Divx will be one of the codecs available to you.
Rob
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That was exactly the sort of reply I was after. Thanks so much – I used Custom and specified DivX as the codec and my resulting file was 320MB. So happy!
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