Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!thunder.mcrcim.mcgill.edu!snorkelwacker.mit.edu!news.media.mit.edu!news From: lacsap@media.mit.edu (Pascal Chesnais) Newsgroups: comp.sys.next Subject: Re: Sound with NextTV Message-ID: <1991Jun19.163913.4033@news.media.mit.edu> Date: 19 Jun 91 16:39:13 GMT References: <1991Jun19.132808.8384@aio.jsc.nasa.gov> Sender: news@news.media.mit.edu (USENET News System) Organization: MIT Media Laboratory Lines: 32 In article <1991Jun19.132808.8384@aio.jsc.nasa.gov> mll@aio.jsc.nasa.gov (Mark Littlefield) writes: > Wait a minute, what's this NextTV??? I looked through all of the > product lists I have (as well a grep-ing all of the saved news files I > have been collecting for a year) and I couldn't find ANY reference to > a NextTV. Please enlighten..... When NextDimension board shipped, NeXT included an upgrade package which includes three demo programs without source: NeXTtv, ScreenScape, and CompressionLab. In addition they included a sample video app with sources called Video.app which demonstrates the coding aspects of the NextDimension. NeXTtv is a demo program to show the digitizing of live analog video into a nextstep window. It allows you to also do some pretty neat compositing of tiff files and pipe all that appropriately to the ntsc resolution outputs of the NeXT. ScreenScape pipes a section (ntsc resolution) of your NeXTstep window to the ntsc res outputs, allowing you to videotape demos of your work. What is neat about screenscape is that it has a tracking mode where the ntsc output window moves depending upon where your mouse is. CompressionLab demos the JPEG (in software) image compression. It is nice to see what artifacts occur when you goose the JPEG Q level too high. We have been running the ND for about a week and a half now. It is fun to use. Demo programs are of course buggy... but as always you get used to not doing the stuff that crashes the window server. Speed, well the first thing to remember you are moving 24 bits per pel in the worse case... we find the machine usable, not a lighting 040 monochrome window server, but better than the 030 days. -- Pascal Chesnais, Research Specialist, Electronic Publishing Group Media Laboratory, E15-351, 20 Ames Street, Cambridge, Ma, 02139 (617) 253-0311 email: lacsap@plethora.media.mit.edu (NeXT)