DUO-CAPTURE EX Driver Ver.1.0.0 for OS X

Note
In no event shall Roland Corporation ("Roland") be liable to end-users for any damages whatsoever, including but not limited to financial damages for loss of business profits or business information arising from the use of, or inability to use this product. The foregoing provision is effective even if Roland has been advised of the possibility of such damages.
*All files and other material contained in this folder are copyrighted by the Roland. Any alteration, modification, duplication, distribution, or reproduction of this material is prohibited. Additionally, Roland reserves the right to make changes to these programs and files without prior notice.
*Apple and OS X are trademarks of Apple Inc., registered in the U.S. and other countries.
*All product names mentioned in this document are trademarks or registered trademarks of their respective owners.

About this driver

This is a driver for using the DUO-CAPTURE EX on OS X.
To use this driver, you must set the [COMPUTER/TABLET] switch of the DUO-CAPTURE EX to "COMPUTER(48/44.1)."

Features

System requirements

This driver has the following requirements.

*Please also check the System requirements for the audio/MIDI application and the operating system you're using.
Operating System
OS X v10.8
 
Computer
Apple Mac series computer with on-board USB
*Even if connected to a USB 3.0 port, the performance of the product will not change.
*Mac computers running Microsoft Windows are not supported.

Cautions and Limitations


Installation

*If a dialog box requesting a password appears during installation, enter your password and click [Install Software].
  1. Start computer with all USB cables disconnected.
    (except the keyboard and mouse)
  2. Double-click "DuoCaptureEX_USBDriver."
  3. A screen will ask whether you want to run a program that checks whether installation is possible; click [Continue].
  4. The display will indicate "Welcome to the DUO-CAPTURE EX Driver Installer"; click [Continue].
  5. If a screen appears, asking you to choose the installation location, click the system drive to select it, and then click [Continue].
  6. The installation type will be displayed; click [Install] or [Upgrade].
  7. A screen will ask you to confirm that it is OK to restart your computer when installtion finishes. Make sure that no applications are running, then click [Continue Installation].
  8. When the installation is completed, click [Restart] to restart your computer.
    *It may take some time for restarting the computer.

This completes installation of the DUO-CAPTURE EX driver.

*The Readme file and driver uninstaller are installed in the Applications - Roland - DUO-CAPTURE EX Driver folder.

Before you begin

*To use this driver, you must set the [COMPUTER/TABLET] switch of the DUO-CAPTURE EX to "COMPUTER(48/44.1)."

Settings for audio input and output on OS X

  1. Use a USB cable to connect the DUO-CAPTURE EX to your computer and turn on the power of DUO-CAPTURE EX.
  2. Open "System Preferences" and click [Sound].
  3. Select "DUO-CAPTURE EX ?? kHz" for each of the following settings:
    (The above "??" depends on the setting of the DUO-CAPTURE EX's sampling frequency.)

Settings for MIDI input and output on OS X

  1. Use a USB cable to connect the DUO-CAPTURE EX to your computer and turn on the power of DUO-CAPTURE EX.
  2. In the Applications - Utilities folder, double-click "Audio MIDI Setup" to start it up.
  3. From the Window menu, choose "Show MIDI Window" to open the MIDI Studio window.
  4. In the "MIDI Studio" dialog box, make sure that "DUO-CAPTURE EX" is displayed.
    *If "DUO-CAPTURE EX" is not shown, or is shown in gray, the DUO-CAPTURE EX has not been recognized correctly. Try clicking "Rescan MIDI." Alternatively, switch the power of the DUO-CAPTURE EX off, then back on again.
    *If you installed a different version driver, it is possible that the previous settings are still present. If so, click the grayed "DUO-CAPTURE EX" to select it, and then click "Remove Device" to delete the previous settings.
  5. Click "Add Device." A "new external device" will appear.
  6. Specify the "Device Name" for the "new external device."
    1. Click the added "new external device" to select it, and then click "Show Info."
    2. Enter "DUO-CAPTURE EX" in the "Device Name" field.
      *You don't have to enter anything for the "Manufacturer" and "Model" fields.
  7. Using your mouse, drag the up/down arrows indicating the input/output port to make the following connections.
  8. To verify that MIDI transmission/reception is occurring correctly, perform the following procedure.
  9. Click "Test Setup."
    *If a MIDI sound module is connected to the DUO-CAPTURE EX, the following step will cause a relatively loud sound to be produced by the sound generator, so it is a good idea to turn down the volume on the sound generator first.
  10. If a MIDI sound module is connected to the DUO-CAPTURE EX's MIDI OUT connector, click the ▼ of the DUO-CAPTURE EX that was shown in step 4. If you hear sound, the settings have been made correctly.
  11. Click "Test Setup" once again to end the test.
  12. From the Audio MIDI Setup menu, choose "Quit Audio MIDI Setup" to exit the settings.

Before you use the DUO-CAPTURE EX with software

  1. Use a USB cable to connect the DUO-CAPTURE EX with your computer. Then, start up the software you will be using.
  2. Select "DUO-CAPTURE EX ?? kHz" in the audio driver setting of your software.
    (The above "??" depends on the setting of the DUO-CAPTURE EX's sampling frequency.)
  3. Select "DUO-CAPTURE EX" in the MIDI driver setting of your software.

For details, refer to the manual that came with your software.


To change the settings

To change or verify settings

  1. Use a USB cable to connect the DUO-CAPTURE EX to your computer and turn on the power of DUO-CAPTURE EX.
  2. Open "System Preferences" and click "DUO-CAPTURE EX."
  3. The Driver Settings Panel is displayed.

About the items in the Driver Settings Panel

"Audio Buffer Size"
You can adjust the audio input/output buffer size.
Decreasing the buffer size will shorten the latency and improve realtime performance, but might make it more likely that you will experience audio clicks and pops, depending on your computer's processing power and the song data load.
Increasing the buffer size will lengthen the latency, but will make audio streaming more stable, and it will be less likely for audio clicks and pops to occur.
In general, you'll probably want to decrease the buffer size for better realtime performance if you're playing a software synthesizer in real time, or if you're monitoring an audio input that's being passed through your DAW software.
Conversely, you can increase the buffer size to prevent audio clicks and pops if you're recording or playing back song data that contains numerous tracks and presents a heavy processing load.
By changing the buffer size as appropriate for your situation, you can obtain the right balance between realtime performance and audio streaming stability.
 
"Recording Margin"
If the recorded audio data contains sound dropouts or noise even after you've adjusted the audio buffer size in your software and also adjusted the above "Audio Buffer Size," try increasing this "Recording Margin" setting.
*For some software, it may not be possible to adjust the buffer size.
 
"Recording Timing"
If the timing of the recorded audio data is not correct, adjust this value.
 
Note)
If you click the [Apply] while your audio software is running, the setting changes won't be immediately reflected. Only after all audio software have been quit, and the software is then started once again will the settings become effective.

To uninstall

  1. Start computer with all USB cables disconnected.
    (except the keyboard and mouse)
  2. Double-click "Uninstaller."
  3. The display will indicate "This uninstalls DUO-CAPTURE EX driver from this Mac."; click [Uninstall].
    *If any other message appears, proceed as directed by that message.
  4. The display will indicate "Are you sure you want to uninstall the driver?"; click [OK].
  5. A dialog box will ask you for a password; enter your password and click [OK].
  6. The display will indicate "Uninstllation is completed."; click [Restart]. Your computer will then restart.
    *It may take some time for restarting the computer.

Troubleshooting

Cannot install/uninstall the driver

Follow the procedure described below to start the installer/uninstaller.
  1. Hold down the Control key and click the installer/uninstaller icon.
  2. On the menu that appears, select "Open."
  3. When you are prompted to confirm that you want to start the application, click "Open."
Check the security settings.
  1. In "System Preferences," click "Security & Privacy."
  2. Click the lock icon on the bottom left. When a dialog box requesting a password appears, enter the administrator's password to unlock.
  3. On the General tab, change the "Allow applications downloaded from" setting to "Mac App Store and identified developers."
    *When you finish installing or uninstalling the driver, change the setting back to the original setting using the same procedure.

Cannot select the DUO-CAPTURE EX device

Is the DUO-CAPTURE EX's [COMPUTER/TABLET] switch set to "COMPUTER(48/44.1)"?
Be sure to set the DUO-CAPTURE EX's [COMPUTER/TABLET] switch to "COMPUTER(48/44.1)."
 
Did the computer enter a Sleep mode while the DUO-CAPTURE EX was connected with its power turned on?
If the computer entered a Sleep mode while the DUO-CAPTURE EX was connected with its power turned on, it may not operate correctly. In this case, after resuming, exit all software that are using the DUO-CAPTURE EX, and then turn on the power of the DUO-CAPTURE EX once again.
 

No sound is heard; cannot playback or record

Could you have entered Sleep mode during playback or recording?
If you entered Sleep mode during playback or recording, it will no longer be possible to play back or record from the DUO-CAPTURE EX. Exit all currently playing or recording software, and switch the power of the DUO-CAPTURE EX off, then back on again.
 
Try adjusting the audio buffer size of the driver
If the size of the driver's audio buffer is too small, sound may not be produced, or it may be impossible to carry out normal playback and recording.
In such cases, you should refer to "To change or verify settings," and increase the size of the buffer.
 

Occasional disruptions in the sound or noises occur.

Try adjusting the audio buffer size for the software you're using.
First, try adjusting the audio buffer size for the software you're using.
If sound dropouts or noise still occur during playback or recording, try adjusting the "Audio Buffer Size" in the Driver Settings panel.
*For some software, it may not be possible to adjust the buffer size.
 
Could you have performed a OS X software update while the device was still connected?
If you performed the OS X software update with the device left connected, drop-outs may occur in the sound. If this occurs, please re-install the driver.
 
Is the DUO-CAPTURE EX connected to a USB hub?
Try connecting the DUO-CAPTURE EX directly to the USB connector of your computer itself.
 

Occasional disruptions in the sound or noises are in the recorded audio data.

If the recorded audio still contains sound dropouts or noise even after you've adjusted the audio buffer size as described in "Occasional disruptions in the sound or noises occur." (above), try increasing the "Recording Margin" in the Driver Settings panel.
*For some software, it may not be possible to adjust the buffer size.

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