CompuServe Thread

#Genlock and ntsc output

13 messages in this thread
#118500From: Mark SloatmanApr 11, 1988 1:16 AM
Greg, maybe you can help me out. I'm trying to get some of the animations in DL15 (I think) to run on my 500. There is one called Boinm that I tried to run. DL'ed it and MOVIE, ran it according to the instructions. Screen goes black, disk runs (seems like it's loading the data) and then I just go back to the desktop. Any hints? Do you know what animations _do_ run in a 512K machine? Thanks – Mark
#118508From: John Sobernheim(TCR)Apr 11, 1988 2:32 AM
Mark, I believe that with the Movie program, you have to have your STACK set to at least 16k. You might check that out. If you are running the animation from WorkBench it will set the stack for you, I believe. Not sure if the one you dl'd will run in 512K, but if it requires more than 512k it is generally posted in the description of the file in the Data Library. -John
#118596From: Mark SloatmanApr 11, 1988 12:21 PM
I was running it from the Workbench, and it said that it would work in 512K. Thanks. Any other hints? I really want to see an animation run with the VideoKey! Mark
#118959From: GreG Tsadilas/SYSOPApr 13, 1988 1:55 AM
Mark, be sure that your stack is set to at LEAST 16000. Also, be sure to use the newer MOVIE player. Forgive the delay in my response….I'm trying to finish up an 8 sec anim. So far about 5 seconds have been rendered. Get this…..any ONE part of it (there are 11 parts) require at LEAST 1.5 to 2 megs to run! GAK! 🙂 GreG
#119033From: Mark SloatmanApr 13, 1988 12:40 PM
You don't need to set the stack from the workbench, do you? I am using the newest movie program. Any good upgrades for a 500<grin>? Mark
#119157From: GreG Tsadilas/SYSOPApr 13, 1988 10:46 PM
Mark, from WB you don't need to…..but it an't hurt to try it from CLI with a stack of 16000! <grin> Seriously, try it from CLI as suggested above, if it doesn't work try it with nothing else loaded. Since I have a 2000 with 5Megs it's a bit difficult to test it in 512K. Please let me know the results for future reference. -Thanks GreG
#119434From: Mark SloatmanApr 15, 1988 1:31 PM
Ok, will do. Thanks! Mark
#119644From: Gregory KozikowskiApr 16, 1988 9:32 PM
Dear Mark (Practical Solutions, etc. etc) I would like to raise my battered and bleeding hand to offer a few suggestions for the NTSC Encoder. I bought two A2000's for installation in offices before I found out that not only didn't the stupid things have NTSC output, all the suppliers either didn't have marketable models or recalled them. It would be just terribly nice if the encoder was a board that fit in one of the expansion slots. One of the A2000's is in an office that doesn't have enough room to change your mind in. External boxes are nice but they take up room. I too, am a techie and would REALLY like to have controls over Sync level, lum level, chroma level, burst level and phase, Either I or Q level , and Quadriture. I clipped the resistor out of the encoder in the A1000 and the output was painfully close to broadcast accurate. All I needed was a few more knobs………. Thanks for letting me rave. Sometimes it helps. Captain Video
#119716From: Mark SloatmanApr 17, 1988 12:21 PM
What resistor did you clip? I don't suspect that's all it would take on the 1000's encoder. We probably won't have too many controls, folks like yourself can use them but others abuse them if you know what I mean. Unless you want us to make one for $200, then we don't have to sell as many<grin>. We will consider a board for the 2000, as well as a external box. Thanks a bunch for your input. Mark
#120094From: Gregory KozikowskiApr 19, 1988 10:27 PM
Dear Mark, et.al. (you remember Al?) In their supposidly infinite wisdom, Amiga chose to install the graphics chip that does NTSC output in the A1000 with a resistor across the two pins that determine modulation quadriture. As a result, if you chose to display your graphic on a "TV" or monitor that did the same thing, over half of the screen came out flesh tones. I'm doing this on line so the english doesn't always work. Let me hit that again. The resistor in the modulator circuit pushed the vectors in such a manor that many shades of red and yellow came out flesh tones. There are a LOT of TV's out there that do the same thing. By the time you sloshed through both of these errors, you had almost no "Q" modulation. EVERYTHING came out either flesh tone, or cyan. If you clip the resistor out of the circuit, (no further adjustments necessary) the vectors can be made to hit the 2% boxes of a vectorscope. The other problems I talked about are vid levels and chroma levels, both of which are off…but not THAT much. If you want to know more about that resistor, please do it via E-Mail and I'll be tickled pink (8B, 8G, 16R) to tell you all about it. It's in my files somewhere. Captain Video
#120180From: Mark SloatmanApr 20, 1988 11:50 AM
I see what you mean. It does do that! We designed the VideoKey to be accurate in phase and level. Thanks. Mark
#120222From: Vince MacdonaldApr 20, 1988 6:38 PM
I missed the beginning of this thread – will your device take the RGB output from the CBM Genlock and convert it to a decent composite signal? If so, when (and how) can I get one? Thanks, Vince
#120312From: Mark SloatmanApr 21, 1988 1:42 AM
Thanks for the interest. It will take any Amiga RGB output and convert it to a nice NTSC signal. The outputs from most Genlocks are composite video; can't do much to help that. Mark