VGA to XLR converter

Discussion in 'Professional Video Production' started by hack.bac, Apr 27, 2007.

  1. hack.bac

    hack.bac Guest

    I run a live production auditorium, and I have recently received a
    request to control video (laptop and dvd) from the stage. The
    auditorium was not exactly designed for this, so I need a quick
    solution. I do have a XLR snake (primarily for audio feeds).

    Is there a way to convert from VGA to XLR? Perhaps VGA > Component >
    XLR ?
    hack.bac, Apr 27, 2007
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  2. hack.bac

    FCP User Guest

    Typically, you setup the laptop running the production on stage with the

    Then just get a long enough VGA cable to reach the projector location.

    Most modern laptops - PC and MAC based have VGA outputs (or more modern
    DVI outputs and use simple cable adaptors for VGA)

    I do lectures around the country all the time this way.

    IF the presenter MUST have remote control, companies like Keyspan make
    infared controller that will advance a laptop presentation remotely.

    Plus some modern PC's have remote control capabilities built in. (e.g. a

    No reason to make this more complicated than it needs to be by locating
    the laptop to an unnecessary position somewhere in the back of the house.
    FCP User, Apr 27, 2007
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  3. The most likely solution is to use remote-control of whatever
    (the laptop, the DVD player, etc.) Sending video over an audio
    pair may be OK for low-res security cameras, but not for the
    kind of video you want to project on a big screen.
    This is not a typical solution because it is likely not very often
    VGA *is* component. Typically five signals, Red, Green,
    and Blue video, plus Horizontal and Vertical sync.
    Sending video over an audio pair may work, but you would
    need 4-5 pair to send VGA is you want any kind of quality
    out the other end. At least one for each R,G,B video signal.

    I think you would be far better off with one of the solutions
    that use Cat5 network cable than trying to use the audio
    snake. Not to mention the crosstalk video "buzz" you may
    get in the mic lines, etc.
    Richard Crowley, Apr 27, 2007
  4. hack.bac

    hack.bac Guest

    Thanks for your input, guys!

    hack.bac, Apr 27, 2007
  5. hack.bac

    jakdedert Guest

    Perhaps you should describe the situation a bit more fully. In lieu of
    more information; a suggestion:

    There exist remote control 'speaker cue lights' that are commonly used
    for this purpose. This is a simple pickle/light combo. The presenter
    holds the pickle (remote) which has two buttons. One button for
    forward, one for reverse. The light, activated by a radio signal from
    the pickle, simply indicates--at the operator position--which button the
    presenter pushed. The operator takes it from there and actuates the
    proper equipment...usually a laptop or other computer.

    If the media is a PowerPoint presentation, and video is required, said
    video can usually be embedded on a slide at the desired point in the
    presentation. Make sure the video file resides in the same folder as
    the PP slides (easiest to do if the presentation is to be ported to
    another computer), or that the reference to the video on the slide
    points to the correct folder if not.

    If the desired video resolution is not available as a computer file,
    then a script becomes invaluable for the operator to determine when to
    switch to it. Alternatively, the speaker can incorporate a visual or
    audio cue for the operator ("And now we'll look at a video...")

    This kind of stuff is done every day in thousands of meeting rooms
    around the world.

    jakdedert, May 7, 2007
  6. hack.bac

    panteltje Guest

    I am having fun with a wireless access point atm..
    54Mbits / second is plenty for video, you would need 2 PCs.
    Use one as remote control (I dunno about MS windows but in Linux
    telnet works),
    and the other as player connected to the display, in that case only
    the control is
    transmitted wireless.
    Or use the one you have as player and connect to the other that does
    the display,
    in that case only the video is transmitted wireless.
    You can do audio too that way and get rid of some cable stuff....
    I am using a WAP54G Linksys access point, sets you back about 80 $ or
    You need 2.
    panteltje, May 7, 2007
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