On Thu, 06 Mar 2008 08:33:33 +0100, Holger Levsen <[EMAIL PROTECTED]> wrote:
> On Wednesday 05 March 2008 19:30, Herman Robak wrote: >> >> Helping the speakers prepare legible slides >> There should be some kind of service for the speakers to let them see >> how well their slides survive VGA to DV scan conversion, followed by >> compression to 320x240 Theora. > > That's quite easy to test: just switch your resolution to 800x600 or > better yet, 640x480. 640x480 on a computer screen has much better contrast than a washy projector screen, and it has about three times the resolution of a low bitrate 320x240 Theora stream. What the presenters will see with your approach is this: http://people.skolelinux.no/herman/vid/dc/slide-legibility_16pt_fullres.png ...but what they need to see is this: http://people.skolelinux.no/herman/vid/dc/slide-legibility_16pt_halfres.png > This not only makes sure, people watching (low quality) live streamscan > read the slides, but also people in the audience sitting behindthe third > row. (And the same is of course true for live demos insteadof slides.) Not quite. I have summarised why this isn't so here: http://people.skolelinux.no/herman/vid/dc/slide_legibility.html -- Herman Robak _______________________________________________ Debconf-team mailing list Debconf-team@lists.debconf.org http://lists.debconf.org/mailman/listinfo/debconf-team
