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1.4 System requirements

For USB operation, a current WINDOWS PC or MAC with a USB connection is sufficient. Both USB 1.1 and USB 2.0 are supported.

◊The UMX250 supports the USB MIDI compatibility of WINDOWS XP, Vista and MAC OS X operating systems.

◊The UMX250 can also be operated as a stand-alone MIDI controller with no PC connected. Software control via MIDI is also possible, provided your computer has a MIDI interface.

2. Introduction to MIDI

2.1 MIDI control for beginners

Application possibilities for the UMX models are truly wide- ranging. We’ll start with a couple of general explanations and examples that should quickly let you get a good understanding of MIDI basics.

The definition of the MIDI standard began in 1982 with the cooperation of various international companies (MIDI: Musical Instrument Digital Interface). At that time, musicians were looking for a possibility of managing the communication

of electronic musical instruments of different makes with one another.

What exactly does the UMX250 do?

Simply put, this is a remote control for all kinds of MIDI equip- ment. Using the faders, rotary knobs and buttons, the foot pedal and the keyboard, an entire array of control instructions can be generated, which in turn can control the most diverse functions of external devices.

What kinds of equipment can I control with the UMX250? You can basically control any device supporting the MIDI format. Both hardware and software MIDI devices are controlled in exactly the same way. The only difference is in the wiring.

U-CONTROL UMX250 User Manual

Here are a couple of suggestions on how you can use your UMX250:

◊Editing sound parameters of (virtual) synthesizers, sound samplers, GM/GS/XG sound generators.

◊Controlling parameters on effects equipment/software plug-ins such as effects processors, reverbs, compressors, equalizers.

◊Remotely controlling software mixers (volume, panorama, mute functions, etc.).

◊Remotely controlling transport functions (playback, forward, stop, etc.) on sequencers, hard disk recorders, drum computers, etc.

◊Live control of volume and sound parameters on expanders

◊Remotely controlling groove boxes, step sequencers, MIDI- generators and other “live” software

◊Program changes and volume control on sound generators (just like on a master keyboard)

◊Can be used by band keyboardists, solo entertainers, organists, electronic music performers, DJs, sound engi- neers, home/project studio owners, theater technicians, etc.

And how does it work?

Remote control is realized by assigning the individual control elements of the UMX250 to individual MIDI parameters. Whenever one of these control elements is operated, the UMX250 generates the control data assigned to this control element, which are then transferred to external devices over a data link. Thus, for example, the VOLUME/DATA fader is factory-set to send data controlling the volume level of a channel.

The data connection is usually a standard MIDI cable with a 5-pin DIN plug on each end. Such cables should not exceed a length of 15 meters. With the UMX250 there is one more data connection available: the USB cable to the host computer. Here, the cable should not exceed a length of 5 meters.

The data transmission takes place over 16 channels.

The control data generated by the individual control elements are also called MIDI messages, which can be divided into

3 major groups: