User manual M-AUDIO QUATTRO USB

[. . . ] Audiosport Quattro Mac Users Guide Introduction . . 5 Hardware & Software Installation on the Mac . . 8 The Quattro and the Macintosh Sound Manager . . 10 ASIO Control Panel and Operating Modes . [. . . ] If your Quattro came with a CD, OMS is included on this disk. If your Quattro came with a floppy disk, you will need to go to either our website (http://www. midiman. com/drivers. htm, find the MacOS 9. x section, then OMS) or Opcode's website (www. opcode. com) to download OMS. The OMS program is a MIDI manager, which MUST be installed prior to running the AudioSport Quattro Installer in order for the Quattro MIDI driver to be properly placed in the OMS folder. See the next section, "Configuring OMS" for more information. The AudioSport Quattro comes with an installer program that will place all driver components except the Quattro ASIO driver in their proper folders. The Quattro ASIO driver will be placed in a folder on your desktop, and must be inserted into your music program's ASIO folder, provided that your music program uses ASIO. 1. On the Driver Disk that came with your AudioSport Quattro, locate the folder that contains the AudioSport Installer for the Macintosh. The Installer program installs all Quattro extensions, plus 6 2. 3. 5. creates an "AudioSport QUATTRO Asio" folder on your desktop, containing the Quattro's ASIO driver. You will now need to name and save your new Studio Setup (or use the default name) before you can assign various instruments to the QUATTRO's output and input. Assign your instrument (optional) and you are done. Your QUATTRO is ready for use with MIDI. 7 You can run the OMS `Test Studio' utility by going to the `Studio' menu and releasing the mouse on "Test Studio". Playing a note on your keyboard will give you an audio message from your computer, "MIDI received, " while the arrow pointing to the keyboard icon flashes. Clicking on a keyboard icon with the mouse pointer will send a tone cluster to the QUATTRO MIDI output port. The LED will light, and your sound module should play the chord. You may now exit OMS Setup by quitting the application. The rest is up to configuration within your music software. Generally, this means selecting "OMS Compatibility, " or "Open Music System" for your MIDI system setup. Hooking up your AudioSport Quattro The Quattro provides four line inputs and four line outputs, and will accept a +4dB balanced signal on 1/4" TRS plugs (tip-ring-sleeve), or a -10dB unbalanced signal on 1/4" TS plugs (tip-sleeve). Each 1/4" jack will accept either TRS or TS plugs. You may connect the output of a line level instrument such as an electronic keyboard or instrument preamp, the output of a microphone preamp (a mic preamp is required for use with a microphone), or the output of a CD player or similar line-level device. Check your device's documentation for information on its operating line level (+4 balanced or -10 unbalanced), and see the section, "Using the Input Level and Output Level Switches" in this manual. You may connect the four outputs of the AudioSport Quattro to a mixing console, or use two of the outputs for a stereo send to a monitoring system (power amp and speakers, or a home stereo), powered speakers, or a headphone amplifier. [. . . ] As stated in the "Theory of Operation" section, the AudioSport Quattro requires all of the USB bandwidth, so definitely do not have any active USB devices attached when using the Quattro. If you experience clicks and pops in your audio tracks, consider temporarily disabling network cards or modems. Also, if your system board has an AGP graphics slot and you are using a PCIbased graphics card, purchasing an AGP graphics card and utilizing the dedicated AGP buss may improve performance both in audio and graphics. Additionally, minimizing graphics use in your audio program, such as defeating waveform displays while recording, can improve performance. [. . . ]