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- Xref: sparky misc.wanted:9852 rec.video:13828 rec.video.production:1839
- Newsgroups: misc.wanted,rec.video,rec.video.production
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!iguana.cis.ohio-state.edu!fontana
- From: fontana@iguana.cis.ohio-state.edu (Mark Fontana)
- Subject: Re: WANTED: Discont'd Radio Shack video effects box
- Message-ID: <1992Nov23.031606.5287@cis.ohio-state.edu>
- Sender: news@cis.ohio-state.edu (NETnews )
- Organization: The Ohio State University Dept. of Computer and Info. Science
- References: <1992Nov21.165347.29544@cis.ohio-state.edu> <4466@vidiot.UUCP>
- Distribution: usa
- Date: Mon, 23 Nov 1992 03:16:06 GMT
- Lines: 31
-
- In article <4466@vidiot.UUCP> brown@vidiot.UUCP (Vidiot) writes:
-
- (Mark Fontana) writes:
- ><
- ><A couple of years ago, Radio Shack was selling a little gadget for
- ><around $80 that let you do horizontal, vertical, and possibly diagonal
- ><wipes with NTSC composite video.
-
- >If you are planning on using the unit two mix two video signals, forget it.
- >Since it doesn't have any TBCs built in, it will not wipe between two video
- >signals. It will only wipe/fade to black. When you switch to the other video
- >input it may cause a video glitch, depending how out-of-sync the two video
- >signals are. Even if you do genlock the two video signals, the unit will not
- >directly mix between the two video signals.
- >
- >If all you want to do it wipe/fade to black, then you are OK.
-
-
- Bad wording... actually, I was thinking of using this gadget to solve the
- "letterbox" circuit problem that I was asking about early last week.
-
- Would it be possible to take this box, set it for "vertical chopping"
- and letterbox the incoming video that way? Since the extent of the
- cropping effect is determined by a potentiometer, the bars would probably
- jitter a little; this could be remedied by replacing the knob with a
- selector switch for various fixed resistances, corresponding to different
- aspect ratios (1.33, 1.85, 2.33).
-
-
- Mark Fontana
-
-