Thread View: comp.multimedia
4 messages
4 total messages
Started by Leonard Hermens
Fri, 20 Nov 1992 20:15
Need Macintosh Quadra RGB to NTSC conversion
Author: Leonard Hermens
Date: Fri, 20 Nov 1992 20:15
Date: Fri, 20 Nov 1992 20:15
15 lines
1048 bytes
1048 bytes
I need to convert RGB (red-green-blue) video signals from a Quadra to NTSC TV standard video. I realize I can get black and white NTSC easily from the Quadra built-in video, but I need wiring information or info about exisiting products that do this conversion. Pricing and vendor information would be helpful, too. Thank you very much, Leonard ----- Leonard Hermens Washington State University lhermens@eecs.wsu.edu
Re: Need Macintosh Quadra RGB to NTSC conversion
Author: Geoff Rehn
Date: Mon, 23 Nov 1992 02:21
Date: Mon, 23 Nov 1992 02:21
26 lines
1690 bytes
1690 bytes
In article <1992Nov20.201545.1669@serval.net.wsu.edu>, Leonard Hermens <lhermens@eecs.wsu.edu> wrote: > > I need to convert RGB (red-green-blue) video signals from a Quadra to > NTSC TV > standard video. I realize I can get black and white NTSC easily from the > Quadra built-in video, but I need wiring information or info about > exisiting > products that do this conversion. Pricing and vendor information would > be helpful, too. > NeoTech ship a video encoder that will convert the Mac RGB to PAL, S-Video or NTSC. This is an external encoder that takes the video signal and converts it. May need to boot up the VRAM on the Quadra to around 1Mb. The down side of the NeoTech is that (in PAL at least) the output is only 256 colours, despite millions on board. In Australia, FIRMWARE DESIGN are the suppliers, at around $A500 - 600. There is another box out there, newly released, but I haven't tracked it down yet. We have been using the NeoTech to enable the Mac screen to be beamed out via satellite to remote areas, for computer literacy classes. Also good for video production. Not the highest quality resolution but good enough.
Re: Need Macintosh Quadra RGB to NTSC conversion
Author: Ken Lam
Date: Mon, 23 Nov 1992 12:51
Date: Mon, 23 Nov 1992 12:51
34 lines
2090 bytes
2090 bytes
g_rehn@csuvax1.murdoch.edu.au (Geoff Rehn) writes: >In article <1992Nov20.201545.1669@serval.net.wsu.edu>, Leonard Hermens ><lhermens@eecs.wsu.edu> wrote: >> >> I need to convert RGB (red-green-blue) video signals from a Quadra to >> NTSC TV >> standard video. I realize I can get black and white NTSC easily from the >> Quadra built-in video, but I need wiring information or info about >> exisiting >> products that do this conversion. Pricing and vendor information would >> be helpful, too. >> >NeoTech ship a video encoder that will convert the Mac RGB >to PAL, S-Video or NTSC. This is an external encoder that takes the video >signal and converts it. May need to boot up the VRAM on the Quadra to >around 1Mb. The down side of the NeoTech is that (in PAL at least) the >output is only 256 colours, despite millions on board. >In Australia, FIRMWARE DESIGN are the suppliers, at around $A500 - 600. >There is another box out there, newly released, but I haven't tracked it >down yet. RasterOps has one for about 450-500 $US. It will run off the Quads built in video, though I run it off a 24xltv. -- Ken Lam (803)-884-7615 (H) System Administrator (803)-792-4969 (W) Senior Systems Consultant (803)-792-5446(FAX) Netware/UNIX System Programmer/Integrator lam@jove.cofc.edu MultiMedia Works & Video Productions ======= Teaching the world in better ways
Re: Need Macintosh Quadra RGB to NTSC conversion
Author: Gretchen C Macdowall
Date: Mon, 23 Nov 1992 18:01
Date: Mon, 23 Nov 1992 18:01
9 lines
891 bytes
891 bytes
>I need to convert RGB (red-green-blue) video signals from a Quadra to >NTSC TV If you are going to use it for training just to show activity on the screen I have a box that will do this from MacWarehouse (#GRA 0351) for $299. It does 256 colors but only outputs the top left 512 by 384 pixels of a 13" screen. The quality isn't wonderful but it's usable, especially if you have something that can record S-Video because it can output that and the quality is better than NTSC. The price is certainly right.
Thread Navigation
This is a paginated view of messages in the thread with full content displayed inline.
Messages are displayed in chronological order, with the original post highlighted in green.
Use pagination controls to navigate through all messages in large threads.
Back to All Threads