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Publishing Adobe Captivate Videos on YouTube
The easiest way to do this is to use Adobe Captivate 4 and a video processing application such as Virtual dub. Adobe Captivate 4 will publish your projects as AVI files, which is a marked improvement on previous versions.
However the AVI files produced from captivate are huge - uploading them to YouTube can take several hours unless you have a hardcore Internet connection.
Also, the quality of these when viewed on YouTube can be very poor. YouTube re masters the videos uploaded to it, to save its hard drive space – if you give it a large video file, it will re master it. And sometimes, not do a good job at all.
The best way to stop your videos being massacred as much is to remaster the video yourself - reduce the file size as much as possible and set the video resolution.
To remaster your Captivate AVI, you can use a program like Virtual dub.
I found that resizing the video to 640 x 480, compressing the audio, and recompressing the video vastly improved the results on YouTube.
To give you an idea of file size difference, a “raw” AVI file I produced in captivate (at 1280 x 1024 res) weighed in at 3.5GB.
After processing in Virtual dub, the file size was 152MB. Even taking into account the resized version had ¼ as many pixels, it’s a huge saving.
To test, I uploaded the original version and the virtual dubbed version to YouTube. I tried this with several videos. The original video had missing frames and artefacts; the processed version was much clearer, with no missing frames and minimal artefacts.
Recommended settings for Virtual dub remastering
- Resize video to 640 x 480
- Set the video compression to Cinepack Codec by Radius (you may have better Codec installed)
- Set audio to “Full Processing Mode”
- Set audio compression to MPEG Layer 3, 64KB/s, 44.100KHz, Mono
Simple guide to using Virtual dub to remaster your video
a) Load your AVI video into Virtual dub.
b) Resize video to 640 x 480 pixels.
This is done by selecting “Video” > “Filters” > “Add” > “Resize”.
In the resize dialog box, set the new video size to absolute, 640 x 480.
c) Set the video compression to Cinepack Codec by Radius (this is an old and creaky Codec – others may work better!)
This is done by selecting “Video” > “Compression” > “Cinepack Codec by Radius”
d) Set audio to MPEG Layer 3, 64KB/s, 44.100 KHz, Mono
This is done by selecting “Audio” > “Full Processing Mode”. Then, select “Compression” > “MPEG Layer 3” > 64KB/s, 44.100 KHz, Mono
With this all done, just hit save. You can then check your video before uploading to YouTube.
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