> I thought someone posted this to the list a while back, but looking > through the support docs on haupaugge's website, their FAQ on capturing > pretty much talks only about capture at 320x240 which may or may not be > the theoretical "max" that you need but it sure lends some credence to > the argument:
It most definitely is not. I don't have any links on hand, but vertical resolution (because of how the signal is transmitted -- the analog signal is a continous wave with points at regular intervals at certain points marking the point where fields begin/end) is ALWAYS bang-on 480 regardless of source. Horizontal resolution is variable (for the aforementioned reason), but (assuming your capture card doesn't suck; bt878's do) in theory, 352x480 (on a good card) is enough for VHS and ~540x480 (on a good card) is enough for broadcast. If the source is from a digital source, such as satellite -- Dish, DirecTV, Starchoice and ExpressVu all transmit a signal at 480x480. There will be some lossage of course, in the A>D>A>D process that occurs when you capture the output. However, if you are viewing on a PC, and the deinterlace filter is not very good (i.e. it drops a field to deinterlace), there MAY NOT be a visible difference between 240 and 480 vertically. Certainly you will see it on a TV. (Nevermind the MythTV FAQ, the bits about capture size are not entirely accurate) -- Ian Trider [EMAIL PROTECTED]
_______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
