Midi control, Overview, Midi controller setup – Rane MP 4 Manual 1.9.2 User Manual
Page 20: Assigning controls, Midi platters, Assigning midi to other controls, Assigning ctrl-click functionality, Presets, Native controller support, Technical information

RANE MP 4
FOR
SERATO SCRATCH LIVE
•
OPERATOR’S MANUAL
1.9.2
20
mIdI CONTROL
OVERVIEW
The MIDI Control feature in Scratch Live provides 
the ability to map MIDI controls to Scratch Live 
controls, and thus control the functions of Scratch 
Live using MIDI controllers such as keyboards, 
triggers, sliders, and knobs. Integrating MIDI 
controllers into your Scratch Live setup can 
improve live performance usability, such as 
hitting pads on a MIDI controller to trigger loops 
and cue points. 
mIdI CONTROLLER SETup
The process of setting up a MIDI controller for 
use with Scratch Live will vary depending on 
the hardware in question. Many devices can 
connect to a computer using MIDI over USB, 
and will either be supported directly by your 
operating system, or require installation of 
drivers and configuration utility software. Follow 
the manufacturers instructions for installation. 
 Other controllers may solely use a MIDI out 
connector to send control messages, and 
will require a separate MIDI interface unit to 
communicate to software. Generally the MIDI 
interface will come with drivers and configuration 
tools which pass your controllers output onto an 
available MIDI channel, which can be used by 
Scratch Live. 
 Once your controller is installed and 
functioning correctly, use the directions for 
assigning controls below. 
aSSIGNING CONTROLS
To enable MIDI assign mode, click 
the MIDI button. Hovering the 
mouse pointer over a control will bring up the 
MIDI assignment box, showing the current 
assignment status.
 To assign a MIDI control, click on the control 
in Scratch Live, then move the MIDI control. The 
MIDI assignment box should update to show it 
has mapped the controls to one- another.
 To un-assign a MIDI control, click on the 
control in Scratch Live, and press return on your 
computer keyboard. 
NOTE: Once in mIdI assign mode, Scratch 
Live controls will no longer respond directly 
to the mouse. If you need to change a control 
using the mouse, disable mIdI assign mode. 
While in MIDI assign mode, controls which have 
MIDI inputs assigned show a green box indicator 
around them.
mIdI pLaTTERS
The Scratch Live Virtual Decks are not user 
assignable to MIDI control. MIDI devices with 
platters on them all send different data so user 
mapping is not possible. To control the platter 
use a natively supported controller.
aSSIGNING mIdI TO OThER CONTROLS
Controls which are not normally visible are 
available for assignment in the lower part of the 
screen when in MIDI assign mode. These include 
library navigation controls and the temporary 
cue points for either deck.
aSSIGNING CTRL-CLICK 
FuNCTIONaLITy
Some Scratch Live controls on the GUI have 
additional functionality assigned to ctrl-click. 
You can assign ctrl-click functionality to a MIDI 
control, alongside the normal functionality. For 
example, ctrl-click on the internal mode pitch 
slider returns pitch to zero. To assign this to MIDI 
control, enter MIDI assign mode, ctrl-click on 
the slider, and then assign one of the pads to it. 
When you press the pad, pitch goes to 0. 
pRESETS
MIDI presets are accessible in the MIDI panel of 
the setup screen. By default, the current MIDI 
assignments in Scratch Live are automatically 
remembered and loaded next time you start the 
program. The preset screen allows you to save 
and recall several different MIDI setups. This 
is useful if you are using several MIDI devices 
or want to quickly switch MIDI setups without 
having to reassign all your controls. 
NaTIVE CONTROLLER SuppORT
This Scratch Live version currently has native 
support for the following 3rd party controllers:
• Denon DN-HC4500
• Denon DN-HD2500
• Denon DN-HC1000S
• Numark DMC2
• Numark iCDX
• Pioneer CDJ-400
• Pioneer MEP-7000 / SEP-C1
These controllers are plug and play, and can 
automatically control Scratch Live with no MIDI 
assigment necessary
detailed documentation on how to use these 
controllers.
TEChNICaL INFORmaTION
Scratch Live MIDI Control only supports:
• Note On/Off
• Standard 7-bit CC (Control Change)
• 14-bit CC
• RPN/NRPN (14-bit).
