Microsoft KB Archive/896481

= The audio volume level does not change significantly if you change the audio volume level on a Windows XP Media Center Edition 2005-based computer =

Article ID: 896481

Article Last Modified on 4/6/2005

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APPLIES TO


 * Microsoft Windows XP Media Center Edition 2005
 * Microsoft Media Center Extender for Windows XP Media Center

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Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.



SYMPTOMS
If you try to increase the audio volume level on your Microsoft Windows XP Media Center Edition 2005-based computer, the audio volume level does not increase correctly in the 1 to16 volume level range. Instead, the audio volume level increases slightly from audio volume level 1 to audio volume level 16, and then increases significantly in the 17 to 25 audio volume level range. This symptom occurs if the following conditions are true:
 * You are using a Creative Labs Audigy sound card.
 * Your Windows XP Media Center Edition 2005 installation is not an upgrade installation.



CAUSE
This behavior occurs because the audio volume table in Windows XP Media Center Edition 2005 is designed to provide small increases in the audio volume level at the lower audio volume levels. However, the audio volume level increases are more noticeable at middle and higher audio volume levels.



WORKAROUND
Important This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry

To work around this behavior, disable the volume table. To do this, follow these steps:  Click Start, click Run, type regedit, and then click OK. Locate and then click the following registry subkey:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Multimedia\Audio\VolumeControl

 In the right pane, right-click EnableVolumeTable, and then click Modify. In the Value data box, change the value data from 1 to 0, and then click OK. Quit Registry Editor, and then restart the computer.

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STATUS
This behavior is by design.

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Technical support for Media Center
Because Microsoft Windows XP Media Center Edition was included with your hardware device or system, the hardware manufacturer provides technical support and assistance for this software. Your manufacturer may have customized the installation with unique components such as specific device drivers and optional settings to maximize the performance of that manufacturer's hardware. If you require technical help with Windows XP Media Center Edition, contact your manufacturer directly because the manufacturer is best qualified to support the software that the manufacturer has installed on the hardware.

You can also visit the Windows XP Media Center Edition product information Web site at the following Microsoft Web site:

http://www.microsoft.com/windowsxp/mediacenter/

Additional query words: fan reversed

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