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The Interactivity Behind the Lincoln Heritage Museum, Part 1

May 1, 2014 10:15 AM, With Bennett Liles


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A lot of pre-production went into it because I think there was something like 53 different video and audio programs that went into this.

Right. Right. Yeah, there’s many layers to it, between 45 and 53, depending on if you count the little track loops and that type of thing. But yeah, there’s lots of video and audio throughout the thing. And there’s lots of things that you touch and things that you wouldn’t think that you could turn into a button, we turn into a button to start these things. [Timestamp: 5:40]

Yeah, it would have been a lot easier and probably less expensive to have just let people walk through and push buttons, but buttons and switches really wouldn’t have fit very well with the period that’s portrayed here. Most museums don’t want you to touch things but in this one you really need to touch things to get the whole effect.

Yes, it’s encouraged. You pretty much have to touch things to get the full experience.

And you decided to put in an Alcorn-McBride show controller to sense all of these inputs and run the whole thing?

Right. Right. Yeah, the V16 Pro is our show controller. We picked the V16 because Taylor Studios and I, we have a long history of working with these types of machines and controllers and video players. The Alcorn-McBride’s processing power was what we needed for this. It’s just not that the V16 Pro was in itself what we wanted to do by itself, it was a whole package. We wanted something to be able to communicate well with the video and audio processors too, and with all the lighting and DMX controllers and that type of thing. So we decided to go Alcorn-McBride pretty much all the way from show controller down to lighting control down to audio and video processing. [Timestamp: 6:55]

And that stuff is pretty bullet-proof, too.

It’s tough stuff, yeah. Many different layers of what it can do. It’s good stuff.

How many different sensors are there? Is everything touch triggered or are there infrared proximity sensors? How does all of that work?

Both. There’s basically 32 touch and motion sensors. Motion sensors are microwave type of motion sensing. It’s a smarter technology that knows when you’re approaching the motion sensor as opposed to walking away from it. And then we have proximity sensors, capacitive type of proximity sensors that we turn different objects into buttons. We have a quilt, a plow, an ax, books, dollhouses, a rose – most anything. [Timestamp: 7:46]

Yeah, I didn’t think about it, but I guess that would be an important factor whether it senses that you’re moving toward the exhibit or away from it. Because timing on this must be critical to get it exactly right.

Timing is very important with this exhibit. The whole experience takes about an hour and 20 minutes, and so in order to maintain the flow of patrons, the timing is very important.

And some of those proximity sensors were from Technovision?

Yeah, Technovision. It’s a company in Canada and he makes many different things. He makes video and audio processors, and this particular component is called the TC1. It’s a proximity sensor. It’s a touch-top sensor. It’s a capacitive discharge circuit is what it is. It’s real similar to static electricity that builds up when you walk across some carpets. It’s at a much lower level, but basically the capacitance is the ability of a surface to store electrical charge. And so with non-conductor materials you just incorporate a conductive type of material within or under the object that you want to turn into a touch zone, and you control the sensitivity of the touch zone with different-sized capacitors. So basically you’re creating a full circuit when you touch or get close enough to the capacitive touch sensor to create that circuit between you and the ground. You don’t feel it or anything; it’s just a very minute electrical current. [Timestamp: 9:15]

And of course some of what’s triggered is video playback. I think there’s some rear screen projection involved in this. What size images come up when they’re triggered?

Well, they’re pretty big. What it does, when you first get into the exhibit, you’re in the foyer of Ford’s Theater and you hear Our American Cousin, which was the play that Abraham Lincoln was going to go see when he was assassinated. You hear that going on on the other side of the wall basically. We have automatic doors that open up into the Ford Theater box area. And so basically what happens is when the show starts, there’s a little introduction thing that goes on, and then you are sort of transported into the presidential box at Ford’s Theater to witness him getting shot. And so the wall, through rear projection, looks like it just opens up a hole into the box at Ford’s Theater. It’s quite large. It’s life-sized. The image we project is basically 144in. by 81in., which is 12ft. by 6.5ft., something like that—almost 7ft. It’s quite a large projection area. One of the things we had to get over was we only had about 6ft. of throw space, so we used some ultra-wide video projectors to do that with. [Timestamp: 10:43]

And I take it there are lighting changes that are also triggered by the various sensors?

Oh sure, yes. There’s lots of lighting. It’s pretty dark and really colorful between the audio and video that’s going on to create the moods that we wanted to. We incorporated two DMX machines to control the whole house there, and so we have total control over all the lights, 400 or so different fixtures. We used a lot of little LED fixtures to make pen lights here and there and gobos. There’s lots of designs. It’s very theatrical, actually. [Timestamp: 11:22]

Lots of interactive AV in portraying the life of Abraham Lincoln and the museum has just opened and people are coming through and experiencing it. The Lincoln Heritage Museum on the campus Lincoln College. I know you did a great job and thanks for telling us about it.

Sure, Bennett. Thanks for having me and yes, if you’re in the little town of Lincoln, Ill., stop on by Lincoln College and see a first-person rendition of Abraham Lincoln’s life as it passes before his eyes. [Timestamp: 11:51]

Thanks for joining us for the SVC Podcast with Alan Eidson of Eidson Studios in Little Rock. In part two, Alan will tell us about the Alcorn-McBride ProTraxx 16-channel audio player and Digital Binloop he used to tell the story of Abraham Lincoln at the newly opened Lincoln Heritage Museum, on the next SVC Podcast.



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