logajan@ns.network.com (John Logajan) (02/19/91)
In article <1991Feb19.094849.24138@qut.edu.au> lunnon@qut.edu.au writes: >It turned out that I just could not stand the flicker, so the board is an >unusual curiosity in the bottom of a junk box somewhere. Odd. Since the scan rates should be within a few percent broadcast TV rates. Any idea why this should be? -- - John Logajan @ Network Systems; 7600 Boone Ave; Brooklyn Park, MN 55428 - logajan@ns.network.com, 612-424-4888, Fax 612-424-2853
lunnon@qut.edu.au (02/23/91)
In article <1991Feb21.152704.24184@qut.edu.au>, lunnon@qut.edu.au writes: > > This is easy, when you look at a moving picture on TV from 6 meters you dont > notice it, but on a computer monitor from 2 inches it's headache stuff. > The interlace moves the image down by half a line every odd field so if the > same image is on both fields a horizontal line appears to jiter up and down > if the line is only on one field as on an Amiga or with the interlace gizmo > then the line only gets written on half the frames or at 15 Hz (yuk) ^ oops I made a boo-boo Make that 30 Hz ( With 60Hz normal frame-rate ) > > Next time your local TV station shows their overlaid bright white titles > look at the top edge of the title to see what I mean. > BOB > R.Lunnon@qut.edu.au >
logajan@ns.network.com (John Logajan) (02/23/91)
In article <1991Feb22.113551.24187@qut.edu.au> lunnon@qut.edu.au writes: >> The interlace moves the image down by half a line every odd field so if the >> same image is on both fields a horizontal line appears to jiter up and down >> if the line is only on one field as on an Amiga or with the interlace gizmo >> then the line only gets written on half the frames or at 30 Hz (yuk) If I understand you (and the other guy who sent me email -- thanks) then interlace still might not be such a bad idea for displaying things like the GIF files in alt.sex.pictures, err, I mean alt.car.pictures. Yeah, that's the ticket. Such GIF pictures don't generally have such abrupt detail. So they should work with interlace? -- - John Logajan @ Network Systems; 7600 Boone Ave; Brooklyn Park, MN 55428 - logajan@ns.network.com, 612-424-4888, Fax 612-424-2853
perstoro@netmbx.UUCP (Wilhelm Schaefer) (02/23/91)
Hello! ****** This is realy intresting this flicker discussion. But does anybody know how I can tell my ST to start flicker-mode? I guess there must be some changes in the hardware. I am *realy* intrested in a description of the necessary hardware. If it works, I'll try to give my atari some extra HZ, to make it faster, WITHOUT giving my monitor to much.... bis denn -- --- perstoro --- --