7/1/2023 0 Comments Midi converter box![]() ![]() It doesn’t transmit MIDI or DMX, so you’ll need to use the regular XLR-5 and DIN connectors for those protocols.Īnd just for fun, this page has a second video clip which demonstrates the DecaBox converting MIDI notes to DMX lighting data, then combining that information with an incoming DMX stream. Note: the USB port on the DecaBox is used for firmware updates. The connector size is fairly standard, so it’s easy to replace when lost. One power supply is included with your order. System Power: 9-15v DC, 200 mA, center positive, 2.1mm barrel connector. Midi note velocities are usually calculated on a 7 bit scale and range from. The DMX output stream is refreshed at around 44 Hz.įurther, the system responds to the MIDI control channel messages $BX $78 $YY and $BX $70 $YY (‘all notes off’, ‘all sound off’) where X is the MIDI channel being used and $YY is any value. If you’re a musician wanting to drive some LEDs and par cans, or are designing a neat new art exhibit, or something similar, this will work perfectly. That being said, our customers have found that this system works really, really well in smaller installations. To realize that sort of throughput, consider using a dedicated USB – DMX dongle, a proper lighting console, or something similar. Note that DMX data is transferred at 250,000 bits per second, while MIDI only runs at 31,250… At 1/8 the baud rate, it’s not possible to update an entire DMX universe with new data 44 times per second using only MIDI information. Note also that if you buy a DecaBox and aren’t completely thrilled with its performance, it can be returned within 30 days for a full refund of the purchase price. The most recently received message (note or CC) always takes precedence. Note #1 (C# -1) equals MIDI CC #2 equals DMX channel 2. Fade times can be nearly i nfinite in this case.įor purposes of authoring your effects, MIDI Note #0 (which is C-1) equals MIDI CC #1 equals DMX channel #1. Since the DecaBox will respond equally to note and CC messages, you can play notes for fast ‘step’ effects, then move faders / gradually adjust MIDI CC messages for slow fades. There are 119 general purpose CCs in each MIDI channel, and they can usually be accessed by name and/or number in your sequencer software or other hardware. Yes! The best way to do fades and ramps with the DecaBox is to use a MIDI CC (continuous controller) rather than just simple notes. I understand that DMX resolution is twice that of MIDI, but can I still get acceptable results? I’m interested to know how well your product looks when attempting to slowly fade a given channel up and down, through all 127 MIDI value, but so far, all the demos I’ve seen so far demonstrate relatively quick blinking and flashing effects. Typically there are lots of slow, gradual fades between different colors in the lighting design. Hi – I’m interested in purchasing your converter box to produce light shows for dance performances. It may not be the best choice for slowly panning intelligent lights. This works well for driving incandescent lights and other equipment which doesn’t require 256 steps of granularity. What’s neat about this is that DMX channels can be ‘played’ with piano keys or kickdrum hits, or driven with knobs on a sequencer or MIDI control surface. The 7 bit value of the control channel is doubled and sent out the door as DMX channel data. ![]() The first 119 general-purpose CCs are monitored. Simultaneously, the firmware monitors MIDI continuous controller data on that same user-selected MIDI channel. Also, a ‘Note On’ message with zero velocity clears the channel. ‘Note Off’ messages at any velocity clear the corresponding DMX channel. The 7-bit note velocity value is doubled to make an 8 bit DMX channel value. Since there a total of 128 notes in a MIDI chanel, the system outputs 128 channels of DMX. The system watches for ‘Note On’ messages related to that channel. This DecaBox firmware personality responds to MIDI note on / note off messages and MIDI continuous controller messages to generate DMX output.Ī single (user selectable) MIDI Channel is monitored. Here’s a 1-minute YouTube clip, which was uploaded in HD resolution. Operation is super simple and straightforward. Use this nifty interface to generate DMX lighting data from your keyboard, sequencer or MIDI controller. If you’re new to DMX and/or MIDI, this quickstart document may serve as a useful introduction to how the DecaBox can bridge these two worlds.Īnd here’s a full instruction manual for those needing more detail. Update The DecaBox now includes a built-in DMX dimming engine. The DecaBox Universal Protocol Bridge – Click to Enlarge ![]()
0 Comments
Leave a Reply. |