Microsoft KB Archive/261696

= &quot;Out of Bandwidth&quot; Message with USB Audio Device =

Article ID: 261696

Article Last Modified on 1/27/2007

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APPLIES TO


 * Microsoft Windows Millennium Edition

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This article was previously published under Q261696





SYMPTOMS
When you are using Universal Serial Bus (USB) audio devices (such as speakers), you may receive &quot;Out of Bandwidth&quot; messages when you are playing audio on the speakers or when you are playing high-quality content that requires more bandwidth than is typical.

This behavior may occur even though you have used the device before without receiving the &quot;Out of Bandwidth&quot; message.



CAUSE
USB audio devices (such as speakers) do not reserve USB bandwidth. Bandwidth for these devices is &quot;demanded&quot; only when the device is being used. If the demand exceeds the available bandwidth, the message may appear.



RESOLUTION
To work around this behavior, use any of the following methods:
 * Add an additional USB controller to the computer, and attach the speakers to the root hub of the additional controller.
 * Remove USB devices until the bandwidth usage is below the maximum when you are using the speakers.
 * When you are streaming audio to the speakers (from a program such as Microsoft Windows Media Player), lower the playback quality of the content (or use lower-quality content).



MORE INFORMATION
For additional information about how to gauge available USB bandwidth, click the article number below to view the article in the Microsoft Knowledge Base:

255954 USB Bandwidth Usage Detection in Windows Me

Keywords: kbenv kberrmsg kbfaq kbhardware kbprb kbprod2web KB261696

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