M-Audio MidAir Bedienungsanleitung

User Guide

English

Wireless USB MIDI System

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

What’s in the Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

MidAir Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

About MidAir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Installation for Advanced Windows XP Users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Minimum System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Controls and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Hardware Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Appendices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Appendix A: Useful MIDI Data Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Appendix B: General MIDI Controller Numbers (MIDI CC’s) . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Speciﬁcations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Warranty Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Warranty Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Contact Us . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

MidAir User Guide

Introduction

Thank you for choosing the MidAir wireless MIDI system. The MidAir transmitter and receiver modules allow you to convert

any regular MIDI keyboard* into a wireless controller. This allows you to control your MIDI hardware or software without

cumbersome cables and gives you the freedom to place your keyboard anywhere that best suits your needs—you no longer have

to worry about cable lengths, wiring clutter, or accidents caused by cables on your stage or studio ﬂoor.

MidAir’s compact transmitter plugs directly into the MIDI output of any keyboard you wish to turn into a wireless controller. The

transmitter is battery powered and can operate at distances of up to 10 meters (30 feet) from the receiver. It is compliant with

the MIDI speciﬁcation and will send virtually any command that your keyboard can generate.

Setting up wireless operation is simple. Just connect the MidAir transmitter to your existing keyboard, connect the receiver

to a MIDI module or your computer’s USB port and turn on your equipment. There are no complicated setup procedures or

software applications—your audio software treats your new wireless keyboard just like any other wired controller you may have

in your studio.

Whether you’re looking for unfettered live performance, or the ﬂexibility to set up and record MIDI tracks anywhere in the studio,

MidAir is your wireless MIDI solution.

* MidAir is compatible with virtually all MIDI keyboards as well as other devices that have a MIDI output (such as drum

machines and control surfaces). To simplify this User Guide, we refer to all of these wired MIDI devices collectively as

“keyboards” but please keep in mind that this applies to other devices as well.

What’s in the Box

< MidAir transmitter

< MidAir receiver

< MidAir Series CD-ROM containing drivers and documentation

< CD-ROM containing Ableton Live Lite M-Audio Enhanced Edition

< Printed quick start guide

< Power adapter

< Two AA batteries

< USB cable

MidAir User Guide

MidAir Features

< One-way, 2.4GHz wireless MIDI transmission

< Wireless range up to 10 meters (30 feet)

< Battery- or AC-powered transmitter

< AC or USB bus-powered receiver

< Compatible with virtually all existing MIDI devices

< Supports virtually all MIDI messages and channels

< MIDI and USB 1.1 connectivity

< Receiver doubles as a 2-in/1-out USB MIDI interface

< Standalone operation—no computer required

About MidAir

Wireless devices have become increasingly commonplace over the last few years. For example, many people now

use wireless keyboards and mice with their computers. Lots of college campuses and coffee shops offer wireless

Internet access and some concert venues have switched to wireless microphones and in-ear monitoring systems. All of these

developments have improved the lives of end-users by reducing cabling clutter, allowing people to move about freely and work

more comfortably. MidAir technology extends this level of convenience to musicians working in the studio as well as performing

on stage.

MidAir establishes a one-way 2.4GHz wireless link and delivers a dependable MIDI connection at distances of up to 10 meters

(30 feet). This proprietary linking technology constantly monitors the wireless signal and automatically changes frequencies

when interference is detected, thereby ensuring a robust connection between the transmitter (keyboard) and the receiver. In

cases where extreme interference or battery failure cause the transmitter and receiver units to lose contact, a full MIDI reset

(including an all-notes-off “panic” message) is issued to prevent stuck MIDI notes. In short, MidAir frees you from your MIDI

cabling, allowing you to work from anywhere in your studio or on stage.

MidAir is class-compliant—no drivers are required. Simply connect the receiver to your Windows XP or Mac computer, attach

the MIDI breakout cable to the transmitter, connect the transmitter to your keyboard and you’re ready to go. Its simple USB

connectivity eliminates the need to open your computer to install hardware.

MidAir User Guide

Installation for Advanced Windows XP Users

The MidAir receiver is class compliant. This means that on Windows XP and Mac OS X computers, you can simply connect

the receiver to the computer with a USB cable. The operating system already has the drivers required to communicate

with the receiver.

However, advanced Windows XP users who intend to use MidAir with more than one application at the same time or

simultaneously use other class-compliant USB devices with audio capabilities should install the special M-Audio drivers for

optimum performance.

Installation instructions can be found in the printed Quick Start Guide.

Minimum System Requirements

When used with a host computer, a USB 1.1 or USB 2.0 port is required.

Windows* Mac OS*

Pentium 3 600 MHz Macintosh G3** 600/G4** 667 MHz

256 MB RAM OS X 10.3.9 with 256 MB RAM

DirectX 9.0c or higher OS X 10.4.5 or greater with 512 MB RAM

Windows XP (SP2) or higher (Mac OS 9 or earlier not supported)

(Windows 98, Me, NT or 2000 not supported)

* Please check the minimum system requirements of your DAW software as they may be higher.

** Native USB port required; G3/G4 accelerator cards are not supported.

MidAir User Guide

Controls and Connectors

Transmitter

1. Battery Compartment (Next to Power Jack) – Accommodates two AA batteries. To avoid damage to the

transmitter, observe proper polarity when inserting batteries.

2. Power Jack (DC in 9V) – Connect the optional 9V DC, 500mA external power supply to this jack. It is not

necessary to use this jack if you are using batteries to operate the transmitter.

3. Battery Status LED (Low Bat.) – The LED indicator will begin ﬂashing red when battery capacity is running

low.

4. Wireless Connection Status LED (Connect) – This green LED displays the current state of the wireless link:

< On – Connected < Off – Not connected < Blinking – Connection in progress

5. Power Switch – This switch powers the unit on and off. If both AC and battery power are available, the transmitter

will opt for AC power in order to preserve battery life. When not in use, be sure to turn off the transmitter to

preserve battery life.

6. MIDI Input Connector (MIDI)

– Attach the included MIDI breakout

cable to this jack and connect the 5-

pin MIDI plug to your keyboard’s MIDI

output.

7. Wireless Connect Button

(Connect) – The MidAir transmitter

and receiver will usually establish a

wireless connection automatically.

Under some circumstances,

excessive interference, distance, or

other factors may cause the controller

and receiver units to lose contact. If

the wireless connection fails and the

transmitter and receiver are within a

range of 30 feet, press the wireless

connect buttons on both units to

re-establish connection.

If you’re using more than one MidAir wireless setup, you might ﬁnd yourself in a situation where you’ve inadvertently

linked a transmitter to the wrong receiver unit. This will result in your MIDI data being routed to the wrong

destination. If this happens, you can simply press the wireless connect buttons on both devices to “re-introduce”

them to each other.

This button is recessed to avoid accidental activation. Use a bent paperclip, pen, or other small object to press the

button.

234 5

MidAir User Guide

Receiver

8. Power Jack – If you plan to

use the MidAir receiver as a

standalone device (without a

computer), connect the optional

9V DC, 500mA power supply

here.

9. USB Connector – Connect a

USB cable from this output to

the host computer’s USB port.

When using the USB connection,

the receiver unit is powered via

the host computer and a power

adapter is not required.

10. MIDI In (In) – You can connect a MIDI device (such as a keyboard or electronic drum kit) to this input. Note

that this input varies in function depending on whether your MidAir setup is in standalone mode or connected to

a computer:

< Standalone mode – When used in standalone mode, either the wireless signal from the MidAir transmitter

or from the MIDI input is routed to the MIDI output port of the receiver. The Standalone Mode switch (15)

determines which source is routed.

< Host mode – When the receiver is used with a computer, the computer sees this port as a separate

USB MIDI device that is unrelated to the MidAir transmitter. Data received at this port is treated as an

independent MIDI input, and is not merged with incoming MIDI data from the transmitter.

11. MIDI Out (Out) – Connect this output to other MIDI devices using a standard 5-pin MIDI cable. The function of

this port varies depending on whether you are using the MidAir receiver in standalone mode or with a computer:

< Standalone mode – When operating in Standalone mode, the Standalone Mode switch (15) determines

the source of this output.

< Host mode – When the MidAir receiver is connected to a computer, this port appears as an independent

MIDI out, available for sending MIDI messages from your software to an external MIDI device. In Host mode,

this MIDI output port has no relation to the MidAir transmitter. In this setup, the Standalone Mode switch is

ignored and does not affect operation in any way.

12. Wireless Connect Button – This button operates in exactly the same way as the Wireless Connect button found

on the MidAir transmitter. See the description in the previous section for more information about this button.

13. Wireless Connection Status LED – This green LED functions in the same way as the Wireless Connection

Status LED found on the MidAir transmitter. Refer to the description in the previous section for more information

about this LED.

14. Activity LEDs – The MidAir receiver’s two activity LEDs indicate the operational status of the unit:

< Yellow – The yellow LED illuminates whenever incoming wireless MIDI data is detected by the receiver

unit.

< Red – The red LED illuminates whenever data is received at the wired, 5-pin MIDI input port on the

receiver.

10 11

MidAir User Guide

15. Standalone Mode Switch – This switch only affects the signal routing when using MidAir as a standalone (non-

USB) device. It selects the source of the receiver’s MIDI output port.

The Standalone Mode switch can be set in the following three ways:

< MIDI In – Data from the receiver’s 5-pin MIDI In port is sent to its MIDI Out port. Any data received

from the wireless input is ignored.

< Wireless – Data from the receiver’s wireless input is sent to its MIDI Out port. Any data received

from the wired MIDI In port is ignored.

< Auto – The receiver monitors both the MIDI In port and wireless input and selects whichever input is

currently active. On this setting, the following rules are observed:

The wireless and 5-pin MIDI In port data streams are never merged—when MIDI data is being received from the

receiver’s MIDI In port, any data received at its wireless input is ignored.

If no MIDI data is received from the receiver’s wired MIDI In port for 250 milliseconds and incoming MIDI data is

detected at the wireless input, the receiver unit will automatically switch to output the incoming wireless MIDI data

stream.

If the receiver switches from one stream to another, a set of “Note Off” and other MIDI reset commands will be

sent to the MIDI Out port. This prevents any notes that are currently playing from becoming “stuck.”

MIDI Out

Receiver

Transmitter

Sound

Module

IN OUT

MIDI In

MIDI Controller

or Keyboard

MIDI Controller or Keyboard

Wireless MIDI In

to MIDI Out

Wired MIDI In

to MIDI Out

IMPORTANT: If the Standalone Mode switch is set to “Auto,” it is important to plan your MIDI input sources

carefully. For example, if you attempt to drive a synth or other MIDI device by sending an ongoing stream of MIDI

data to the receiver’s wired MIDI In port (e.g. MIDI Time Code (MTC) from a sequencer), any MIDI data received

at the wireless MIDI input will be ignored.

Additionally, use caution when switching between the wireless input and the MIDI In port as this can sometimes

cause notes to stop abruptly.

MidAir User Guide

Hardware Connections

MidAir can be used in two basic conﬁgurations. Please take a look at the scenarios outlined below to ﬁnd the one that best

works for you.

Scenario 1: MidAir as a Wireless, Host-Based Controller

If you plan to use your MidAir system in a computer-

based recording studio, this setup should best serve

your needs. In this conﬁguration, the keyboard operates

wirelessly while the receiver communicates with the

keyboard and provides an extra set of wired MIDI inputs

and outputs to your computer. You can use these extra

inputs and outputs to connect another MIDI device in

your studio.

The MidAir transmitter can be powered by batteries or

the AC adapter. The wireless receiver draws its power

from the USB bus and does not require any AC power.

NOTE: In this conﬁguration, your audio software will

detect two MidAir MIDI input ports and one MIDI

output. The ﬁrst input is from your wireless MidAir

transmitter whereas the second input is the wired 5-pin

MIDI input (i.e., any MIDI device you connect to the 5-

pin input). The output port lets you send out MIDI data

to any device that is connected to the MidAir receiver.

PC / Mac

MIDI In MIDI Out

Receiver

MIDI Controller or Keyboard

MIDI Controller,

Sound or Drum Module

IN OUT

Transmitter

MidAir User Guide

Scenario 2: MidAir as a Wireless, Standalone Controller

Live performers who want to use their MidAir system

wirelessly on stage will most likely use this scenario. In

this conﬁguration, the MidAir transmitter (keyboard) sends

MIDI commands to the wireless receiver which then relays

that information (via MIDI cable) to sound modules or other

MIDI devices.

The wireless receiver must be powered by AC adapter

whereas the MidAir transmitter can be powered by either

batteries or AC power.

Note that in this conﬁguration, the Standalone Mode

switch should be set to “Wireless” or “Auto” so that the

receiver will relay the MidAir transmitter’s commands out

of the MIDI output port.

The Standalone switch determines which input signal is routed to the MIDI output port. By setting the Standalone switch to

“Auto,” you can have a different MIDI controller connected to both MIDI inputs and use them subsequently without having to

change the cable conﬁguration or Standalone switch position. Keep in mind that the MidAir receiver never merges signals from

the wired and wireless inputs. If MIDI is received on both the wired and wireless MIDI input port simultaneously, then the wired

MIDI input will take precedence while any signals received at the wireless MIDI input port will be ignored.

For more detailed information about the MidAir receiver’s routing operation, please see the Standalone Mode switch description

in chapter 7 of this guide.

AC Adapter

MIDI

Receiver

Sound Module

IN OUT

Transmitter

MIDI Controller or Keyboard

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