Friday, September 14, 2007

Edits in The Bin Laden Videotape

An interesting article from News.com about the latest Bin Laden's videotape. It's interesting from a digital image forensic view point. Neal Krawetz is the digital image forensic specialist.

At roughly a minute and a half into the video there is a splice; bin Laden shifts from looking at the camera to looking down in less than 1/25th of a second. At 13:13 there is a second, less obvious splice. In all, Krawetz says there are at least six splices in the video. Of these, there are only two live bin Laden segments, the rest of the video composed of still images. The first live section opens the video and ends at 1:56. The second section begins at 12:29 and continues until 14:01. The two live sections appear to be from different recordings "because the desk is closer to the camera in the second section."

Then there are the audio edits. Krawetz says "the new audio has no accompanying 'live' video and consists of multiple audio recordings." References to current events are made only during the still frame sections and after splices within the audio track." And there are so many splices that I cannot help but wonder if someone spliced words and phrases together. I also cannot rule out a vocal imitator during the frozen-frame audio. The only way to prove that the audio is really bin Laden is to see him talking in the video," Krawetz says.

It's funny how much the TV press comment on Bin Laden dying his beard black. Yes, it's different but is that really important? I don't think so.

No comments: