Consider the following scenario:

• You use a Windows Vista-based computer that has a USB microphone device.
• You open the Sound and Multimedia tool (Mmsys.cpl).
• The computer enters sleep or hibernation.

In this scenario, when the computer resumes from sleep or from hibernation, you cannot use the USB microphone device to record audio.

Note: A built-in microphone may be attached by using a USB connection internally. In this scenario, you may also experience this symptom.