rosenstn@sdcsla.UUCP (Mark Rosenstein) (12/09/85)
Hi: We have a number of Symbolics Lisp Machines with Symbolics' 8bit frame buffers which have programmable sync generators. The machines are used in training applications. Currently we use the frame buffers for graphics applications, but are planning on moving into the wide world of ntsc video. Specifically, we are planning to make umatic videotapes of some of our work, and integrate videodisk images and segments with the graphics. We hope to do this integration on both the frame buffer using a frame grabber we purchased and through a computer controlled switcher to a tv screen. We can get out of the computer 640x484 rgb with ntsc sync on the green, and for use with our frame grabber we need to convert ntsc from the videodisk to rgb. Ok. Assuming we want high quality output (yes even high quality ntsc looks crummy) we need advise on what are good encoders, decoders and computer controlled switchers (RS232). Or better, what are the qualities we should be looking for at various price ranges. (eg. the price of switchers varies with the number of inputs, but for our application two or three inputs are sufficient). Finally, and the most depressing part: what are the other magic video parts that are necessary to make the system work together. We think we need a sync generator, but are there other parts we need? Even better, are there books that describe system level requirements for this type of system. [What I have been able to find in the UCSD library is either way more detailed then I wanted, or "How to be a Director". The best I have found is "Single-camera Video Production" by Fuller, Kanaba and Brisch-Kanaba, which isn't quite technical enough.] Thanks much. Mark Rosenstein Organization: Intelligent Systems Group, UCSD/NPRDC Postal-Address: C-015, La Jolla, CA 92093