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To launch the ASIO or EASI control panel from the USB Configuration Manager:

1.  Double click the M-Audio logo in your Windows System Tray, located on the

right side of your Windows Taskbar. (You can also right-click the icon, then
choose “Open M-Audio USB ASIO/EASI Control Panel.”)

2. Click the button, “Open ASIO/EASI Control Panel.” 
2.  In  the  column  labeled  “Interface,”  choose  which  driver  panel  you  wish  to

launch--either ASIO or EASI.

3.  In the column labeled “Device,” choose which M-Audio USB Audio product

you are using--in this case, it’s the Duo.

4. Click “OK.”

The M-Audio USB ASIO (or EASI) Driver page shows you the M-Audio and the
Duo  logo.  In  the  upper  right-hand  corner  you  will  see  the  “Versions”  section,
with a readout of the Firmware version, the USB driver and the ASIO or EASI
driver versions currently in use by the USB Audio Duo.

Below is a screenshot of the M-Audio USB ASIO Driver panel with both pairs
of  input  and  output  channels  activated.  There  are  two  sections,  one  labeled
“Available Channel Sets” and the other labeled “Bitwidth.” Settings in these two
sections interact with each other. At the 16-Bit setting, you will notice that the
“Channels  1-2  In,  1-2  Out”  option  is  available,  and  the  maximum  sample  rate
shown is 48000 Hz. 

With both stereo pairs enabled, i.e., Channels 1-2 In and Channels 1-2 Out, the
Duo behaves as a “2x2” audio device at 16-bits, and at sample rates of 48000Hz
and below (that is, 48kHz, 44.1kHz, 22.05 and 11.025kHz). These sampling rate
options as well as the bit depth setting will then be available and selectable from
within your music program.

Clicking  on  the  Bitwidth  slider  and  moving  it  to  the  “24-Bits/Sample”  setting
will cause the “Available Channel Sets” list to drop down, forcing you to make

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Содержание Duo

Страница 1: ...ting the Gain 12 Phantom Power 13 Using the Pad Switch 13 Standalone Mode 13 Duo Operation on the PC 14 The USB Audio Configuration Manager 14 The Duo and the Windows Sound System 15 The Duo MME and Y...

Страница 2: ...Standard USB cable 9V AC 1 Amp Wall Wart power supply Quick Start Guide The USB Audio Duo is a powerful little device that you will find easy to use once you familiarize yourself with its many feature...

Страница 3: ...D 20dB pad available for each microphone input Multitrack recording and mixing using the convenience of your USB port PC drivers include Windows XP 2000 ME and 98SE ASIO EASI and WDM Mac drivers inclu...

Страница 4: ...one switch will connect the Mic and Line inputs directly to the analog Line Outs S PDIF output and the Headphone output Standalone mode allows for use of the Duo as a mic preamp and or analog to digit...

Страница 5: ...tputs will be unbalanced The Line Outs receive audio from one of two sources With the Standalone switch in the Out position the Line Outs receive audio from the computer s software outputs With the St...

Страница 6: ...Duo can be attached or unattached to your computer according to your needs The Duo is a 2x2 audio interface providing two channels of audio TO the computer and two channels of audio FROM the computer...

Страница 7: ...ble is for the computer and the other is the device end Find an appropriate spot on your desktop or work area for the Duo Windows XP Installation 1 Boot Windows XP with your M Audio USB Duo powered OF...

Страница 8: ...your computer s CD drive locate the folder USB_AUDIO DUO WINME Click Next 6 On the next screen Windows will indicate it has found an updated driver for this device Keep the updated driver selected an...

Страница 9: ...ndicate it cannot find a file it is attempting to copy from the Windows 98 CD If so insert your Windows 98 Second Edition CD then use the Browse button to point to this CD and continue 10 Windows will...

Страница 10: ...leeve Each of the Duo s 1 4 TS Direct In jacks are unbalanced and will accept an unbalanced 4dBu or 10dBV signal on 1 4 TS plugs The Duo provides two microphone inputs on balanced XLR connectors Eithe...

Страница 11: ...plugged into a monitoring system Using the Input and Output Level Switches Using the front panel Input Level and or the back panel Output Level switches you may change the operating line level for eac...

Страница 12: ...from the Duo when used in conjunction with a direct box or passive impedance transformer Plug in your mic or instrument with the gain controls turned down then turn the gain up incrementally while te...

Страница 13: ...is bypassed when this switch is in the out position Standalone Mode The Duo can also be used in a Standalone mode independent of your computer Pressing the Standalone switch on the front panel and lo...

Страница 14: ...computer are powered on Duo Operation on the PC The USB Audio Configuration Manager When the Duo drivers are installed a control panel is also installed into the System Tray on your Windows taskbar Th...

Страница 15: ...lly the Duo s ASIO EASI control panel can be launched from the USB Audio Configuration Manager This is very useful in certain circumstances and is covered in greater depth in the section ASIO EASI Con...

Страница 16: ...nd are not ASIO or EASI compliant The Duo s MME drivers use the WDM model which make them compatible with the latest software technology A music program such as Cakewalk s Sonar takes full advantage o...

Страница 17: ...toring and similar to monitoring the record inputs of a tape machine Note that in Windows XP 2000 and ME the WDM drivers will also install automatically and can achieve the same results with a program...

Страница 18: ...IO or EASI driver versions currently in use by the USB Audio Duo Below is a screenshot of the M Audio USB ASIO Driver panel with both pairs of input and output channels activated There are two section...

Страница 19: ...usic program In the Available Channel Sets dropdown list you may also select either Channels 1 2 In or Channels 1 2 Out The Duo will perform at 96kHz sampling rate with any single stereo pair enabled...

Страница 20: ...ve functions of other USB devices such as movements of a USB mouse may cause clicks in the audio during playback or recording If this occurs click on the Advanced tab and select High Note that the def...

Страница 21: ...the advantage of being able to monitor your source through the program similar to monitoring the record inputs of a tape machine with greatly reduced latency ASIO Control Panel and Operating Modes on...

Страница 22: ...of the USB bandwidth As a result the Maximum Sample Rate readout will change to 96000 Hz The Duo will perform at 96kHz sampling rate with any one of the stereo pairs enabled and with either the 16 or...

Страница 23: ...and devices such as print monitors or WinFaxes can cause interference with USB audio the resulting effect being clicks and pops in your audio performance The Duo requires a lot of the USB bandwidth so...

Страница 24: ...t 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 Probl...

Страница 25: ...o you on your drivers CD ROM There you will find FAQs Tips Tricks and How To Guides to walk you through installing your product as well as configuring it with some of today s most popular software app...

Страница 26: ...that a cellular signal can be clearly reached where you are calling from Sit back try to relax and then dial Our top notch technical support team will be ready to help you fix your problems Thank you...

Страница 27: ...requires repair because of user misuse or regular wear it will assess a fair repair or replacement fee The customer will have the option to pay this fee and have the unit repaired and returned or not...

Страница 28: ...Notes 28...

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