Back to files

QLC MidiOut Plugin
Copyright (C) Heikki Junnila

DESCRIPTION

This is a simple plugin to convert QLC's internal DMX data into MIDI data.

PROTOCOL

The plugin supports 128 channels used at least in Botex & GLP devices, maybe others, too. Basically the protocol used by Botex & GLP in their MIDI-capable devices is as follows:

• MIDI channel has nothing to do with DMX channels. You can set any MIDI channel for the plugin from 1 to 16, which should be the same as in your MIDI-to-DMX-device (for example GLP DC1224).
• MIDI note NUMBERS from 0 to 127 correspond directly to DMX channels: Note number 0 == DMX channel 1 and MIDI 127 == DMX 128.
• MIDI note VELOCITY sets the intensity for the corresponding channel. Since MIDI data is represented only with 7 bits, values from 0 thru 127 are available. The given DMX value is just divided by two so that 255DMX == 127MIDI, 127DMX = 63MIDI, 0DMX == 0MIDI.
• MIDI note ON message is sent whenever velocities 1-127 (DMX values 1-255) are used and MIDI note OFF message is sent when velocity/value 0 is used.