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Introduction

Congratulations on your purchase of M-Audio’s O2. The O2 follows in the footsteps of the mobile USB MIDI controller that started it all—the Oxygen8. Small enough to fit in a bag along with your laptop, the slim¬line M-Audio O2 is perfect for throwing down bass lines, programming drum patterns, triggering effects and tweaking virtual studio parameters—anywhere, anytime.

This guide provides a basic overview of how to use the O2. Please refer to the complete manual, found on the Documentation CD, for more comprehensive instructions and information about advanced functionality.

What’s in the Package?

Your M-Audio O2 package should contain the following items:

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O2 keyboard

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Software Bundle CD

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Documentation CD •

USB Cable

Power and Connection Via USB

You can power the keyboard via USB or an optional external power supply. Use only one method at a time.

1.Check that the on/off button on the back of the unit is set to “Off.”

2.Plug in the USB cable provided with the M-Audio O2 to a free USB port on your computer.

3.Plug in the other end of the USB cable to the USB input on the M-Audio Oz.

The single USB cable not only powers the M-Audio O2 but also sends MIDI data to and from your computer system.

You can also use a power adapter (not included) with the following specification: 9V DC output, 250¬300mA, center positive.

Verify that you are not powering the M-Audio O2 keyboard via USB, then simply plug in the power supply to the input labeled DC 9V and switch the power on.

Note: Do not leave the adapter plugged in for long periods of time if the unit is not in use.

Windows XP and Mac OS X

If you are using Windows XP or Mac OS X, you may simply switch the power position to “on.” Because the M-Audio O2 keyboard is class compliant, it will work with out any further installation.

M-Audio O2 Features and Functions

If the installation process has been completed successfully, please read through the following pages for a better understanding of the O2 and how it works.

Program Mode

This manual refers to “Program Mode.” Program Mode defines the state of the M-Audio O2 when the ADVANCED FUNCTION button is pressed. In Program Mode, the keyboard of the M-Audio O2 is set up for selecting functions.

The functions are listed 2 above each key on the O2 keyboard. The second octave of the O2 keyboard is for numerical data entry while in Program Mode.

The Preset “+” and “-” buttons can be used for increment or decrement changes in assigned value when in Program Mode.

When entering numerical values in Program Mode, the LED shows the value entered. This value will update as you enter numerical data. If the M-Audio O2 is in Program Mode, a small dot will appear in the bottom right hand corner of the LED display.

Note that pressing the GLOBAL CHAN button will also engage Program Mode, since the numerical data entry keys are required to enter the new channel assignment. Also, the preset “+” and “-” buttons can be used.

Exit Program Mode by pressing the ADVANCED FUNCTION button when you are finished with programming. The ENTER key must be pressed each time the numerical data entry keys are used to enter a value. Once the ENTER key has been pressed, Program Mode will exit.

Testing the M-Audio O2 with Your Software

We recommend that you verify that your software application is properly communicating with the M-Audio O2 keyboard. Most software applications have a MIDI IN indicator. To confirm data is being received, press any key on the keyboard. If you encounter any issues or the software receives no data, please verify you selected the keyboard’s USB driver as the MIDI Input for your software. In addition, please read the troubleshooting section at the back of this manual and please consult the manual that came with your software for proper configuration within the software application.

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M-Audio O2 quick start Introduction, What’s in the Package?, Power and Connection Via USB, Windows XP and Mac OS
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O2 specifications

The M-Audio O2 is a compact USB MIDI controller designed primarily for musicians and producers who require portability without compromising functionality. This versatile controller stands out due to its combination of essential features, user-friendly design, and real-time performance capabilities, making it an ideal choice for musicians on the go.

One of the main features of the M-Audio O2 is its 25 velocity-sensitive keys. These keys provide a responsive playing experience, allowing musicians to express their creativity with nuances similar to that of a traditional piano. The keyboard is compact enough to fit into a laptop bag, making it a friendly option for traveling artists who need a reliable instrument for live performances and studio sessions.

The controller is equipped with eight assignable knobs that can be used to control various parameters in music production software. This flexibility allows for real-time manipulation of filters, effects, and other aspects of a DAW (Digital Audio Workstation). Additionally, the O2 includes pitch and modulation wheels, which add expressive control over melodies and synthesizer sounds.

Connectivity is straightforward with the O2, as it connects directly to a computer via USB, eliminating the need for external power supplies. This feature ensures compatibility with both Mac and Windows operating systems, allowing musicians to plug in and start creating with minimal setup time. The controller also features a sustain pedal input, providing further performance options for keyboard players.

The O2 is bundled with a set of music production software, enhancing its value and making it easier for users to get started right away. This includes DAWs and virtual instruments that inspire creativity and facilitate a seamless workflow.

In terms of build quality, the M-Audio O2 is designed to withstand the rigors of travel while maintaining a lightweight profile. Its layout is intuitive, allowing users to easily navigate through its features without disruption during live performances or studio sessions.

In conclusion, the M-Audio O2 is a highly portable and feature-rich MIDI controller that caters to the needs of modern musicians. With its velocity-sensitive keys, assignable knobs, and seamless connectivity, the O2 provides a solid platform for creative expression and music production, appealing to both beginners and seasoned professionals alike.
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