M-Audio Duo quick start Troubleshooting, Problem No sound

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Troubleshooting:

performance. Drives with low seek times that run at a minimum of 7200 RPM are best.

You can’t be too rich or have too much RAM. It’s a good idea to have at least 128MB, while 256MB or more will greatly enhance performance.

Troubleshooting:

Problem: No sound.

Possible Cause1: Drivers have not been installed, or the Duo has not been properly configured in your music software.

Possible Cause2: Audio connections have not been properly made. Check your connections and your cables for continuity.

Problem: I can select the M-Audio USB ASIO driver in my music program, but it gives me an error message.

Possible Cause1: On the PC, make sure that ASIO is selected in the Audio Configuration Manager, located in the systray of your Windows Taskbar.

If it is not, the ASIO driver will test and configure properly, but an error message will advise you that you can’t use MME and ASIO at the same time.

Possible Cause2: On the Mac, if the Duo ASIO driver is placed in the music program’s ASIO folder, you will be able to select it in the audio setup. However, if the Duo is not being recognized by the system, then you will be told

that no Duo is attached. Check your USB connections, and make sure that the Duo is powered up.

Problem: I can’t hear my system sounds.

Possible Cause1: On the PC, if you are using the ASIO drivers, and ASIO is selected in the Audio Configuration Manager, then you will not be able

to hear you system sounds (using the MME drivers) if they are being directed to the Duo. If you have another sound device in your system, you can go to Control Panel Multimedia and select this other device. Then you will hear system sounds, provided you are monitoring the alternate sound device in some fashion.

Possible Cause2: On the Mac, you must restart once after installing the Duo drivers. Then, go to Apple Control Panel Sound, and set the output (and

the input, if you like) to “USB Audio.” If the Duo is set to “built-in” in the Apple Sound Control Panel, then you will be able to hear the system sounds through the computer’s internal speaker(s).

After exiting an ASIO application, the Duo must be reinitialized before it can be used with the Sound Manager. Simply turning the unit off, then turning it back

on will do the trick.

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Contents Troubleshooting DUOTMUsers Manuual Introduction What’s in the Box?Quick Start Guide 9V AC 1 Amp “Wall Wart” power supplyDuo Features Minimum System RequirementsPerformance Specs MacintoshFront Panel Back Panel Bottom of Unit Basic Theory of OperationFROM The Duo is aHardware & Software Installation on the PC Windows XP InstallationWindows 2000 Installation CubaseWindows ME Installation Windows 98 Second Edition InstallationHardware & Software Installation on the Mac Hooking up your USB Audio Duo Using the Input and Output Level Switches Using the Mic Inputs Setting the GainPhantom Power Using the Pad SwitchStandalone Mode Operating the Duo in Standalone mode will give you three optionsThe USB Audio Configuration Manager Duo Operation on the PCThe Duo and the Windows Sound System The Duo, MME, and Your Music Program ASIO/EASI Operationthe latest software technology ASIO/EASI Control Panel and Operating Modes on the PC driver versions currently in use by the USB Audio Duo within your music programpanel is set to 16-bits, or when more than one stereo pair is selected for input or Duo Operation on the Macintosh Advanced TabThe Macintosh Sound Manager ASIO Operation on the Macintosh ASIO Control Panel and Operating Modes on the MacPage Optimizing Your System for USB Audio Troubleshooting Problem No soundUse Midiman/M-Audio Resources Gather Important InformationAppendix A - Technical Specifications Analog AudioDigital Audio Limited Lifetime Warranty DUO-010802