7U-CONTROL UMX250 User Manual

2.2.1USB mode

When the UMX250 is linked via USB to a computer, the signalflow is as shown below (Fig. 2.1).

After the UMX250 has been connected to the host computer, a virtual MIDI IN and MIDI OUT interface is emulated.MIDI data generated in the UMX250 are first sent over the USB interface to the host computer, where they are received at the emulated MIDI IN. A sequencer software running on the host computer receives the MIDI data via the MIDI IN and relays them to the emulated MIDI OUT—if all sequencer parameters are set properly. The data are then sent back to the UMX250 via the USB interfaces on the computer/UMX250, where they are looped through to the physical MIDI OUT (14). From here, the MIDI data are sent to the devices connected to the MIDI OUT.

The MIDI OUT connector (14) can also be used as a normal MIDI interface, independently of the sequencer software operating the UMX250.

Sound-Module

IN

OUT

(intern)

PC/MAC

USBMIDI

(intern)

Fig. 2.1: Block diagram of MIDI signal flow
2.2.2 Stand-alone operation

When the UMX250 is not linked via USB to a computer, it is automatically set to stand-alone mode. In this case, the UMX250 can only send out MIDI data from its MIDI OUT connector.

3.Control Elements and Connections

The following factory settings refer to GLOBAL MIDI channel 1.

(1)The keyboard of the UMX250: 25 large, velocity-sensitive keys for maximum playing comfort. The keyboard not only provides for playing, but also functions as an encoder in the context of the assignment procedure.

(2)The MODULATION wheel functions ex works as a conventional modulation wheel (MIDI CC 1). In ASSIGN mode, any MIDI controller can be assigned to it. When you release the MODULATION wheel, it retains its adjusted value.

(3)The PITCH BEND wheel is normally used to change the pitch in real time. In this way, a sound can be “bent” upwards/downwards by several semitones while playing. The specific amount of pitch bending applied to a sound can be set on the device controlled by the UMX250.

(4)Ex works, the VOLUME/DATA fader controls the volume of the notes played on the keyboard (MIDI CC 7). In ASSIGN mode, it can be set to control any MIDI controller.

(5)The ASSIGN button allows you to assign different functions to the various control elements.

The basic principle is always the same:

1)Press the ASSIGN button and keep it pressed. The status LED above the button lights up. The UMX250 signals that it has entered ASSIGN mode.

2)Select the control element to which you would like to assign a new MIDI function by operating it.

3)Release the ASSIGN button.

4)Depending on the choice you made, you may have to define an additional value range (see below for more details).

(9)

(10)

(11)

(8)

(6)

(5)

(4)

(7)

(3)

(2)

(1)

Fig. 3.1: Top view