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Whiskers

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  1. analyze existing video, Although viewing is deemed a technical activity admin are in charge of the system, yes I know that is unfair!
  2. A venue that I look after as a good cause insists that it is a "technical job" to review hours of raw cctv footage when there has been or might have been an incident. The one technician is overwhelmed by these requests , "all eleven cameras for the last week please" There is always a good reason for the request Anyone know of a package that uses movement detection preferably with defined areas to semi automate viewing the CCTV files ,
  3. It's a nice thought, but the main desk will be locked away and only plugged up when needed (probably once or twice a year). Your problem is that Far East do not make architectural DMX controls thus you are left with conventional brands and first world prices. Will your dimmers take analog at the same time. if so a 6 way analog desk with diode patching will do the job OR will the dimmers hold last state? If you are using 6 way racks then with the right patching (FOH rack 1 Hall rack 2 stage rack 3 . . . .) you could have a row of switches (which is all the user wants) and power by the rack.
  4. Your main desk that you have not bought yet might have the answer if it lets you take out a remote go. You program the desk with a semi permanent step chase or Qs that are each state you need and a loop, The low tech interface is a large push button that cycles round the states, "3 pushes for hall only" then "two pushes more for all off" You might or might not go as far as a mimic panel with a small lamp beside the description of each state, each on a DMX channel.
  5. 1) Lecture, Exhibition, Theatre2) Pradovit (Leitz), Kodak Carousel.3) Cracked Condenser Lenses, Fan Bearing or Fan Belt sometimes on the same machines, lampholder burnout, magazine damage, faded slides. 4) Not enough power
  6. Another way would be if you also have a spare computer Easy-capture clones are on eBay Composite in USB out then to computer and VGA monitor One way is about 5.00 with viewing / recording software like eBay item 123677351119 4 way will give you upto 4 composite ins for about 8.00 and the included software gives lots of recording choices, 4 way screen or just one like eBay item 280731207320 (sorry I could not find one in UK) That far from the stage you might be on the edge of the camera's IR output, consider a couple of IR illuminators to give more bash, can they mount any nearer?
  7. Whiskers

    Tilting Speakers

    Try https://www.astralsound.com/vertical-pattern.htm
  8. why not make the puppet larger, then costume a very small person for the walk down - so long as both are in scale
  9. The easy solution http://www.play.com/.../-/Product.html Only 2ch basic PC sound but a total lifesaver, mine is not for sale EVER The hard solution understand and fix Is the "hum" 50Hz or 60Hz ? Make some bright picture hum and ... 1) play some genuine 50Hz out of a separate sound system, if there is a noticeable pitch difference compared to the target hum then its 60Hz* 2) Up the laptops refresh rate to 75Hz (projector may not sync) does the target hum go up further in pitch?* If NO to 1 & 2 ie "hum pitch is not video dependent" Lightly you have a regular vanilla 50Hz noise boy hum loop > not my department > skip to end. If YES to either 1 or 2 then its Video getting into audio, most lightly a combination of missing earths and a common earth perhaps in cat5, next move 3) run laptop to projector with a flexible HD15 lead removing cat5 and Kramer and converters from the game. if 1) or 2) is yes and 3) removes the problem then the escape is in the infrastructure Now bell through from the HD15 male at the laptop all the way to the projector checking earth paths, confirm how the projector straps or commons the various "earths" (explanation so far VGA / UXGA is a collection of unbalanced analogue video signals, most often at 60Hz ) In HD15 VGA/UXGA the "earths "on each of the RGB signals are separate, pins 6, 7 & 8 and then there are one or two Sync signals with separate earth conductors again, and some signaling and ID lines can you feel the standard being creatively modified as we near cat5 with less pins than HD 15 ? signal earths might be joined to save cores, then fanned out somewhere else or not or lots of other fun stuff. laptops are often double isolated with a dummy earth pin on the wall wart PSU but you have earthed it to the projector, laptops have various opinions but often strap vid earth to frame. we have a LOOP ALERT, would give you 50Hz in UK plain vanilla noise boy hum loop. Disregard if you scored YES to either 1) or 2) Suspicion now is an incomplete earth path which could cause the laptop frame to assume video signal potential 60/75 Hz keep belling, or look at Kramer and converter diagrams and finger follow the earth and signals Oh gosh the laptop frame is the audio common, unrequited video could run to earth via the sound system this way causing induction. Might be worth checking if there is one of the three primary colours causing the buzz, project pure green then pure red then pure blue, (VGA/UXGA is a Component system), if yes it narrows down where to bell. /end of long twopennyworth sorry its a load more questions *except if you need to confirm Hz in 1) & 2) a reading bass player is required,bring beer or gig oil. 50Hz (mains) is a shade above G, 60Hz (Standard VGA) is 1/4 tone under B 75Hz is 1/4 tone above D,
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