Driver settings
Adjusting the audio latency
When using the UA-4FX in Advanced mode, you can change the driver settings to
adjust the latency of the audio. To adjust the latency, change the Buffer Size in the
driver settings dialog box.
* Latency is the time delay from when an sequencer software plays back audio data until the
sound is actually heard from an audio device such as the UA-4FX.
1. As described in "Opening the dedicated driver settings dialog box" (p. 36), open the
Driver Settings dialog box.
2. Adjust the buffer size.
The following settings will produce the shortest latency.
Windows users: Set "Audio Buffer Size" to the far left (Min).
Mac OS X users: Set "Audio Buffer Size" to the far left (Min).
Mac OS 9 users: Set "Buffer Size" to the far left (Min).
3. Click [OK] (or in Mac OS X, [Apply]) to close the dialog box.
4. Restart the sequencer software that is using the UA-4FX.
* If you are using a sequencer software that has a function for testing audio devices, get it to
perform its tests.
5. Play back audio data on your sequencer software.
If interruptions occur in the sound, repeat this procedure, and gradually increase the
buffer size in step 2 until interruptions no longer occur.
* Depending on the sequencer software you are using, there may be a buffer size or latency
adjustment function among the audio settings of the sequencer software as well. For details,
refer to the operation manual for your sequencer software.
Opening the dedicated driver settings dialog box
Windows users:
1. Click the Windows Start menu, and from the menu that appears, select Settings
| Control Panel. (Windows XP: Click the Windows start menu, and from the
menu, select Control Panel.)
2. In Control Panel, double-click the "EDIROL UA-4FX" icon.
The "Edirol UA-4FX Driver Settings" dialog box will appear.
* In Windows XP, click "Switch to Classic View" to select Classic View on your
computer. If you're not in Classic View, the EDIROL UA-4FX icon won't be shown.
* In Windows Me, click "View all Control Panel options."
Mac OS X users: Open "System Preferences" and click the "UA-4FX" icon.
Mac OS 9 users: Open the ASIO Control Panel from the Audio Settings dialog box
* The name of the Audio Settings dialog box and the procedure for opening the ASIO
Control Panel will differ depending on your software. For details, refer to the operation
manual for your software.
36
(ADVANCED switch ON)
"Edirol UA-4FX Driver Settings" dialog box will appear.
of your ASIO-compatible software.
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