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Groups > comp.sys.sinclair > #2303
| From | spike1@freenet.co.uk |
|---|---|
| Newsgroups | comp.sys.sinclair |
| Subject | Re: CGC entry - one for the hardware types |
| Date | 2013-07-02 18:34 +0100 |
| Organization | The league against squirrels |
| Message-ID | <thfbaa-6vc.ln1@librarian.sky.com> (permalink) |
| References | <7df18821-3367-4674-ab9e-2a37b20c351d@googlegroups.com> <op.wzh14d0c34qdui@flay.home> <b3bo31F8ukjU1@mid.individual.net> <kqsoqb$1p3$1@dont-email.me> |
And verily, didst Guesser <alistair@alistairsserver.no-ip.org> hastily babble thusly: > On 30/06/2013 23:00, Hanno Foest wrote: >> Anyway, how is it done? >> >> Hanno > > Oops, I missed this. > > The short and techy answer is that the TV is unable to completely > separate the high frequency transitions in the luminance signal from the > modulated chrominance, so some of the black and white signal leaks into > the colour. > > By generating a specific pattern on screen that high frequency cross > colour interference can be manipulated to make the TV generate stable > blocks of colour. > > The effect is being caused by the limitations of the analogue video > circuitry and the way a PAL video signal works. Emulators of course > represent an ideal video signal with unlimited bandwidth etc and make no > attempt to accurately model a PAL signal :D How about bunging up a youtube video showing the effect?... (won't work on my 128 cos the colour conked out yonks ago) -- | spike1@freenet.co.uk | "I'm alive!!! I can touch! I can taste! | | Andrew Halliwell BSc | I can SMELL!!! KRYTEN!!! Unpack Rachel and | | in | get out the puncture repair kit!" | | Computer Science | Arnold Judas Rimmer- Red Dwarf |
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CGC entry - one for the hardware types R-Tape <stonechatproductions@yahoo.co.uk> - 2013-06-30 01:15 -0700
Re: CGC entry - one for the hardware types "Paul E Collins" <equi@cl4.invalid> - 2013-06-30 17:15 +0100
Re: CGC entry - one for the hardware types Hanno Foest <hurga-news2@tigress.com> - 2013-07-01 00:00 +0200
Re: CGC entry - one for the hardware types Guesser <alistair@alistairsserver.no-ip.org> - 2013-07-01 21:34 +0100
Re: CGC entry - one for the hardware types spike1@freenet.co.uk - 2013-07-02 18:34 +0100
Re: CGC entry - one for the hardware types "Chris Young" <chris.usenet@mail-filter.com> - 2013-07-02 19:18 +0100
Re: CGC entry - one for the hardware types Guesser <alistair@alistairsserver.no-ip.org> - 2013-07-02 19:37 +0100
Re: CGC entry - one for the hardware types SamTek <rogerjowett@gmail.com> - 2013-07-03 03:06 -0700
Re: CGC entry - one for the hardware types Sophie Braine <choralmissy@gmail.com> - 2013-07-13 01:15 -0700
Re: CGC entry - one for the hardware types korax1214@gmail.com - 2013-07-14 07:16 -0700
Re: CGC entry - one for the hardware types Andrew Owen <aowen10@mail.bbk.ac.uk> - 2013-07-02 18:38 +0100
Re: CGC entry - one for the hardware types "Chris Young" <chris.usenet@mail-filter.com> - 2013-07-02 19:19 +0100
Re: CGC entry - one for the hardware types Guesser <alistair@alistairsserver.no-ip.org> - 2013-07-02 19:34 +0100
Re: CGC entry - one for the hardware types ec429 <ec429@cantab.ac.uk> - 2013-08-28 00:57 +0100
Re: CGC entry - one for the hardware types Guesser <alistair@alistairsserver.no-ip.org> - 2013-08-28 02:55 +0100
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