Adjusting The Audio Latency - Roland Edirol UA-25 Owner's Manual

Basic connections and settings

Adjusting the audio latency

When using the UA-25 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 application plays back audio data until the
sound is actually heard from an audio device such as the UA-25.
1.
Open the control panel.
Windows XP
Click the Windows start menu, and from the menu, select Control Panel.
* Click "Switch to Classic View" to select Classic View on your computer. If you're not
in Classic View, the EDIROL UA-25 icon won't be shown.
Windows 2000/Me/98
Click the Windows Start button, and from the menu that appears, select Settings
| Control Panel.
* In Windows Me, click "View all Control Panel options."
Mac OS
Open the ASIO Control Panel from the Audio Settings dialog box of your ASIO-
compatible software. 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.
2.
Double-click "EDIROL UA-25."
The EDIROL UA-25 Driver Settings dialog box will appear.
3.
Adjust the driver buffer size.
The following setting will produce the shortest latency.
Windows:
Set "Audio Buffer Size" to the far left (Min).
Macintosh:
Set "Buffer Size" to the far left (Min).
4.
Click [OK] to close the driver settings dialog box.
5.
Restart the software that is using the UA-25.
* If you are using a software that has a function for testing audio devices, get it to perform
its tests.
6.
Play back audio data on your software.
If you hear clicks or pops, close the software, and repeat steps 1–5 until you no
longer hear clocks or pops.
* Depending on the software you are using, there may be a buffer size or latency adjustment
function among the audio settings of the software as well. For details, refer to the
operation manual for your software.
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