On 1/18/2006 12:14 AM [EMAIL PROTECTED] wrote: > > Date: Tue, 17 Jan 2006 21:27:59 -0400 > > From: Greg Estabrooks <[EMAIL PROTECTED]> > > > > But I also saw a neglible change in file sizes, too. Is this > > > the expected behavior? > > > Certainly, bitrate is bitrate regardless of the resolution. 2Megabits > at > > 480x480 is just as much data as 2Megabits at 720x480. > >Oh duh. Of course; I totally wasn't paying attention to the bitrate >page. Well, we already knew I was an idiot... :) > > > The difference > > is how much data per sampled pixel. Often lowering the resolution and > > turning up the bitrate can increase picture quality but it also depends > > on just how clean your source is to start. If you've already got a clean > source > > then you can get away with a lower bitrate. > >Does anyone have suggestions for -their- ideas of reasonable bitrates >before I spend a bunch of time experimenting? I have a clean feed, >and I've been reasonably happy with either "TiVo High" quality, or >"VHS EP mode" quality (yes, I know the latter is substantially fuzzier, >and yes, I'm not even talking SVHS :). Approximate figures for either >one would make good starting points for my experimentation. (And if >anyone thinks that some particular width x height should go along with >these bitrates, by all means, share.) > >
>Since there's both a bitrate and a max bitrate (4500 and 6000 in my >current setup, which are the defaults), there are a lot of variables; >are their any I should stay away from? Is it sensible to lower the >bitrate to, say, 3000 or even lower, and does it make sense to leave >the max bitrate high? Is this used only during a scene change or >lots of motion/flow? I'm using a 350 as my TV-out; has anyone noticed >any particular bugs/crashes/artifacts from using other bitrates? > I've found the info at this site helpful http://www.mediachance.com/dvdlab/tutorial/bitrate.html Cheers, Drew -- Visit The Alchemist's Warehouse Magic Tricks, DVDs, Videos, Books, & More! http://www.alchemistswarehouse.com _______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
