Assigning a Note to a Button

KeyRig 25 User Guide

The following shows the procedure for setting a button to transmit a MIDI Note On message when pressed, and a MIDI Note Off message when released.

1.Press the ADVANCED FUNCTION button and push the button you wish to modify.

2.Press the CTRL ASGN key.

3.Enter “147” using the numerical data entry keys or the DEC/INC buttons. This is the MIDI CC number that corresponds to Note On/Off mode (see Appendix B for all MIDI CC numbers).

4.Press the ENTER key to conﬁrm.

5.Press the ADVANCED FUNCTION button followed by the DATA 3 key.

6.Enter “100” using the numerical data entry keys or the DEC/INC buttons. This will result in a “Note On” message with a velocity of 100 when your selected button is pressed. If you would like a different velocity, enter that velocity instead of “100.”

7.Press the ENTER key to conﬁrm.

8.Press the ADVANCED FUNCTION button followed by the DATA 2 key.

9.Enter “0” using the numerical data entry keys or the DEC/INC buttons. This will result in a “Note Off” command being sent out when your selected button is released.

10.Press the ENTER key to conﬁrm.

11.Press the ADVANCED FUNCTION button followed by the DATA 1 key.

12.Enter “64” using the numerical data entry keys or the DEC/INC buttons. This results in MIDI Note 64 or E4 each time the button is pressed. To play a different note, enter a different value here (MIDI Note numbers are listed in Appendix D).

13.Press the ENTER key to conﬁrm.

Assigning RPN/NRPN to a Fader or Knob

Non-registered parameter numbers (NRPN’s) are device-speciﬁc messages that enable you to control synthesizers and sound modules via MIDI. The MIDI speciﬁcation deﬁnes open parameter numbers to allow manufacturers to specify their own controllers. Some of the more common messages are now registered by the MIDI Manufacturer’s Association and are part of the MIDI speciﬁcation (hence the term Registered Parameter Numbers – RPN’s).

Each NRPN/RPN has an associated 2-byte number. The two bytes allow for 128 values each. (An RPN or NRPN message is made up of two parts: the MSB and the LSB message. Both of these messages together constitute an RPN or NRPN command.) This allows for 16,384 values in total.

MIDI controllers 98 and 99 represent the NRPN LSB and MSB respectively, while 100 and 101 represent the RPN LSB and MSB messages (see the MIDI controllers list in Appendix E). To transmit an NRPN/RPN message, these LSB and MSB controller messages are sent along with their user-speciﬁed values. A further controller message and value needs to be sent to specify the (coarse or ﬁne) value adjustment. This is speciﬁed by controller number 6 (data entry) for coarse adjustments or number 38 for ﬁne adjustments.

A list of NRPN’s is usually given in the user’s manual of any device that receives NRPN messages. It is always necessary that the NRPN MSB and LSB be sent together. Both will be speciﬁed in the device’s manual.

To assign an RPN/NRPN message to a fader or knob:

1.Press the ADVANCED FUNCTION button and move the fader or knob you wish to assign.

2.Press the CTRL ASGN key and enter “132” for RPN Coarse, “133” for RPN Fine, “134” for NRPN Coarse, or “135” for NRPN Fine using the numerical data entry keys or DEC/INC buttons.

3.Press ENTER key to conﬁrm your selection.

4.Press the ADVANCED FUNCTION button, then the DATA 3 key.

5.Enter your RPN/NRPN MSB value and press the ENTER key to conﬁrm.

6.Press the ADVANCED FUNCTION button, then the DATA 2 key. This assigns the number for the RPN/NRPN LSB.

7.Enter your RPN/NRPN LSB value and press the ENTER key to conﬁrm.

25 specifications

M-Audio, a prominent name in the world of music production equipment, offers a diverse range of MIDI controllers to cater to the needs of musicians and producers. Among its lineup, the M-Audio 25 stands out as a compact yet powerful keyboard that appeals to both beginners and experienced users alike.

The M-Audio 25 features a 25-key velocity-sensitive keyboard, providing a responsive playing experience that allows musicians to express their creativity effectively. The keys are designed to replicate the feel of an acoustic keyboard, making it comfortable for extended sessions of play and composition. Despite its compact size, the instrument maintains a professional quality, ensuring that users do not have to compromise on performance.

One of the standout technologies featured in the M-Audio 25 is its ergonomic design, which makes it highly portable. Weighing in at just a few pounds, it can easily fit into a backpack or gig bag, making it an ideal choice for musicians on the go. This portability does not detract from its functionality, as the controller includes a variety of knobs, pads, and buttons for dynamic control of software synthesizers and DAWs (Digital Audio Workstations).

Another key characteristic of the M-Audio 25 is its comprehensive software bundle, which enhances its value significantly. It typically includes a selection of virtual instruments, production software, and plugins that empower users to start making music right out of the box. This integrated approach helps to streamline the music production process for users of all skill levels.

In terms of connectivity, the M-Audio 25 offers USB connectivity, allowing for a simple plug-and-play setup. There's no need for cumbersome external power supplies, as the keyboard draws power directly from the computer. This user-friendly aspect is perfect for laptop musicians working in live settings or home studios.

The pads on the M-Audio 25 are pressure-sensitive, allowing for expressive playing styles, whether drumming or triggering samples. The knobs and faders are assignable, granting users the flexibility to customize the controller according to their specific needs and preferences.

In conclusion, the M-Audio 25 is a compact MIDI controller that brings together key features like velocity-sensitive keys, portable design, and an array of control options. It caters to musicians seeking versatility, responsiveness, and convenience in their music production workflow, making it a valuable addition to any setup.

M-Audio 25 manual Assigning a Note to a Button, Assigning RPN/NRPN to a Fader or Knob

Models: 25