We’re in Love With Synchronized Fireballs

 DMX, MIDI  Comments Off on We’re in Love With Synchronized Fireballs
May 112016
 

eyeballs

Earlier this spring we spent a couple days helping the artists from UK-based Arcadia Spectacular* automate part of a production at the 2016 Ultra Music Festival in Miami.  In this case, they were using the ‘Spider’ stage, an enormous structure which travels in four full trucks and requires 15 people and two days each for setup and strike.  The distance between the spider’s feet is about 62 feet.

In this installation, they needed to convert DMX input into a very precise and real-time set of MIDI output commands.  The MIDI was monitored by a PC running custom software which in turn drove the pyro system.  Our DecaBox with custom firmware was a perfect fit.

small rack

Control Rack for part of an EDM festival. The medicine stored in the top left corner is telling.

liveshot

Our left red LED indicates DMX reception. Since the right LED is also on, a MIDI message is being transmitted.

And here’s a short video clip showing the entire system in action.  Note that the fireballs and the right LED for ‘MIDI OUT’ in perfect sync.

Thanks, Arcadia Spectacular, for the opportunity to work with you on this project.

Need something similar? Let us know.


 

 

 Posted by at 4:35 pm

DecaBox Summer Custom Work

 Case Study, DMX, MIDI  Comments Off on DecaBox Summer Custom Work
Oct 192015
 

This summer we were pleased to see the DecaBox used behind the scenes for a couple of high-profile events.  In both cases, we provided custom firmware which allowed the end user very precise artistic expression.

For the first project, we spent a few days in email discussions with one of the lighting directors at America’s Got Talent.  When the dust settled, we ended up with this DMX to MIDI functionality, which I shared with some less-technical friends the night of the first show:

On tonight’s broadcast, each time a contestant is chosen, a group of lights will pan, tilt and focus so that the artist is highlighted. Our box lurks on the lighting network and listens for that cue to occur. When it does, we send a special MIDI message to a computer in audioworld. This machine is in charge of playing the ‘whoosh’ effect on stage and as part of the master audio feed.

The designers love having light and sound effects exactly locked in sync, each and every time a contestant reveal occurs.

One instance of the effect can be seen within the first few seconds in the video clip below.

 

The second project involved some edits to our standard MIDI to DMX firmware (specifically, adding support for the MIDI sustain command, then making sure that the resulting DMX output behaved accordingly).  In the designer’s words:

When we were asked by Renegade Lighting Design in London who were putting together an installation for Swedish Lighting company Hem for the London Design Exhibition to provide a piano which could control the 88 lighting fixtures.

We were looking for a solution to a couple of midi to dmx related issues – the tricky thing was that for part of the time the Yamaha Disklavia would be in self-play mode getting midi files from a hidden playback system – for other parts of the day, various classical pianists would be playing the rig –

We turned to the Decabox after trying a few different solutions which didn’t really fit the bill as we needed sustain and velocity control of the lights vi midi.

John was such a help in trying to get the sustain pedal to also control the lights – Many many thanks and will definitely be getting a few more! The client was very happy so job well done!

Cheers – Laurie (www.playback.systems)

JE5_0933

Click to Enlarge

Thanks to the AGT team and Laurie in the UK for the chance to collaborate during these events.

Need something similar? We’d love to hear from you.

 Posted by at 10:00 am

Chassis Misprint –> Discounted Pricing

 DMX, MIDI, RS232  Comments Off on Chassis Misprint –> Discounted Pricing
Sep 172015
 

September 17, 2015

This doesn’t happen very often, but we’ve got two damaged DecaBox chassis tops which are looking for a good home.

IMG_7226

IMG_7227

They were printed (briefly) out of registration, then re-printed correctly.  So if you enlarge either photo, you’ll see the bottom of a row of text  that’s in the wrong place.

Otherwise, there’s nothing wrong with the gear.  It’s 100% brand new, just cosmetically imperfect.  And if someone would like to use it at a discounted price, we’d be happy to oblige.

Usually when we list ‘scratch and dent’ gear like this, it only lasts a day or two.  Sometimes only a few hours.

Our offer today is that we’ll take $30 off any regular priced system we sell for each of these two parts.  So take a look in the online store and pick your favorite version.  Then send an email to sales AT response-box.com with ‘Imperfect Chassis’ in the subject line.  Let us know your delivery address and deadline, and we’ll send back an online invoice for the total + shipping – $25 discount.

This page will be updated as quantities change.  Thanks!

 Posted by at 9:37 am

Driving Smart LEDs From MalletKATs via MIDI

 DMX, MIDI  Comments Off on Driving Smart LEDs From MalletKATs via MIDI
May 132015
 
Click to Enlarge

Jason & Company – Click to Enlarge

88 DMX-Driven RGB LED Nodes

88 DMX-Driven RGB LED Nodes, circa 2005

This was a fun project.  Earlier this spring, University of Buffalo composer and percussionist Jason Ross saw our 2010 post describing a clever way to drive new-at-the-time ‘smart’ LED pixels via MIDI input.

He wanted to do something similar as part of a senior project. He was using a trio of MalletKATs to perform an original composition and hoped to map LEDs to individual notes as they were played. These particular ‘KATs contain four full octaves each, plus an extra ‘C’ on the top end.  He required a real-time, stable, hardware-based solution and we were happy to oblige.

Musicians will appreciate that this quantity of notes exceeds even the extended 128-step MIDI scale.  So we offered some custom programming for the versatile blue DecaBox which made everything work perfectly and simultaneously.

To make the installation a success, we provided three strings of smart LEDs, a power supply / decoder with modified programming, and our standard MIDI to DMX DecaBox, also with bespoke firmware.

We assigned each MalletKAT to a separate MIDI channel, and then mapped the specific MIDI notes generated (C3 – C6 inclusive, plus high C7) to three different ranges of DMX channels.  The DecaBox was then programmed to set all three colors of a specific RGB pixel to equal levels when MIDI Note On messages were received.  The brightness of the bulb tracks the note velocity (or loudness) as it is played. Thus, dynamics can be seen as well as heard.  The pixels are extinguished under MIDI control as well.

It takes a bit of math to route all the data to its proper end position, but that was all worked out through a few hours’ testing.  Our gear can receive and process a full pipe of incoming MIDI data in real time, so the lag between the input and display LED output is only about about .025 seconds.  This was especially important since the piece was to be performed live.

Smart LED DMX Interface - Click to Enlarge

Smart LED DMX Interface – Click to Enlarge

Shown here is the system which receives DMX from the DecaBox and generates the properly mapped control signals for the three smart LED strings.  This was a quick-turnaround project, so we secured the circuitry in a generic CATV demarc box with a laser cut mounting panel.  In this photo, the top cover was removed.

And finally, here is the YouTube link for Synth-phony in Lights:

screenkat

YouTube Link – Click to Play

Nice work, Jason.  It was a pleasure to collaborate with you on this design.  Need something similar? Let us know.

 

 Posted by at 4:09 am

DecaBox Converts DMX to MIDI Program

 Case Study, DMX, MIDI  Comments Off on DecaBox Converts DMX to MIDI Program
May 022015
 

elationA few months ago a customer asked if we could help with a custom DMX to MIDI conversion problem.  They were using an Elation Show Designer 3 lighting desk and needed to recall lighting scenes via MIDI input.

They wanted a second DMX console to, among other things, be able to trigger these scene recall messages.

The Elation manual reveals that the console can store 48 scenes on each of 99 pages, or 4,752 different looks. These scenes can be recalled using a MIDI ‘Channel Mode‘ message, which is three bytes long.  The format is

$BX $XX $YY

…where $0X is the MIDI channel number [0 15] and then $XX and $YY are a pair of 8-bit numbers, of which the lower seven are available.

So, we ginned up a simple firmware personality for the DecaBox which lets the MIDI channel and values $XX and $YY be easily defined via three consecutive DMX channels.

Everything worked perfectly.  We asked the client if they could provide any other detail about the overall installation, and they replied with this short description.  Unfortunately, no photos or video were available to share.

I used the dmx to midi device to change scenes on a lighting desk in a roller rink to simulate what was going on in a laser zone arena.

For instance when a base station(let’s say red base) was under a attack the roller rink lights would flash red then when the base was destroyed the rink would flash white for a few seconds.

The setup I used was a computer running Light factory that controls the laser zone arena to send dmx to the midi box to allow it to change pages and scenes on a Elation Show Designer 3 lighting desk.

This setup worked great as I didn’t need to setup a 2nd universe or change any fixture addresses, I could simply tap into the prebuilt lighting scenes the desk provided.

Thanks again!

-Joel

It’s always neat to hear what how our gear is used around the country. If you need something similar, please let us know.

 Posted by at 2:24 pm