I edited some Video Production Guide clips together and uploaded the video to TubeMogul in order to compare the quality of the results at different host sites.
In this test case I used Sony Vegas Pro 8 as the editor software. The reason I used this over MS MovieMaker was that I wanted to create an MP4 video file, which MovieMaker cannot do directly and which would therefore require a separate conversion. This is no big deal but it does take time to convert and delays the publishing process.
I took slides created in MS PowerPoint that were saved as TIF files, and imported them into Sony Vegas. Before doing the import step, I decided on 3 seconds as the viewing duration and set that in the editor options. The duration can be modified in the timeline but each slide has to be touched one at a time.
At a few points I added a transition cross fade, and a fade out at the end. I also placed an overlay text watermark at various periods.
Then I added an audio track of music, with a fade down at the end. The end result is a video of about 2 minutes 30 seconds.
Here is an image of the editor timeline.
To end up with a High Definition video you need to render (convert) the edited content using a high bit-rate. Bit-rate is the speed that information is transferred, and the higher it is the better the resultant quality. The downside of high bit-rates is that the file size is also high.
To keep the final video file size under 100MB for TubeMogul this two and a half minute runtime could be rendered at up to about 5.3Mbps bit-rate. A bit-rate of 2Mbps should be adequate for high quality and still have a manageable file size. Another way of saying this is rendering 2.5 minutes at 2Mbps will result in about a 37.5MB file.
The short calculation is MB = 7.5 x T x BR where MB is megabytes, T is minutes of video and BR is megabits per second.
In the Vegas Pro 8 ‘render as’ dialog I chose MP4 file type, custom template, chose a frame size of 1280 by 720 for wide screen, a frame rate of 29.97, and constant bit-rate of 2,000,000, and checked the box to stretch video to fill the output frame size. This latter option is not ideal as it distorts the image but I wanted the 4 to 3 ratio of the slides to fill a 16 to 9 widescreen to test letterboxing and windowing. If your original source content is widescreen this is obviously not necessary.
Then I uploaded the video file to TubeMogul and checked off the options to be shared on hosts Yahoo, Metacafe, Google, DailyMotion, BlipTV, and Veoh. I used the default embed code from each site, except in the case of BlipTV I halved the display size from 1280×750. Here’s how they display on each host:
Video Production Guide @ Yahoo! Video (Looks like Yahoo! video has disappeared.
Video Production Guide @ Google Video
Google ends video hosting May 13, 2011 when all content is removed. Existing video hosting has been retained due to user feedback. New uploads have been discontinued.
Video Production Guide @ blip.tv
By using the host sites’ embed code you can see how different the results are for Video Editing Production in quality and theme or presentation style.