![]() ![]() What the heck, usbaudio.sys, is being used by one of the audio devices so I decided to give it a try. The hotfix replaces the usbaudio.sys driver that shipped with Windows 7/2008R2 gold with a new version from July 14, 2010. My symptoms were much less extreme than the ones described: corruption instead of outright failure. My problems with mangled audio seemed to be related to power management, sleep yes but also not exclusively. For example, Volume Mixer also stops responding. Additionally, all the other audio-related applications stop responding. In this scenario, the application that was playing audio stops responding. You resume the computer from the S3 sleep mode.You disconnect the USB audio device while the computer is in the S3 sleep mode.You put the computer into the S3 sleep mode while an application plays audio.You configure this device as the default audio device.You attach a USB audio device to a computer that is running Windows 7 or Windows Server 2008 R2.Then I came across a KB article that describes a similar but different issue with USB audio: None of these interventions totally solved the problem. I also disabled the USB audio device in my Apple Cinematic Display. I tried fiddling with Skype, which seemed to be part of the problem. I also dug up a much newer version of the Broadcom wireless network card driver than Apple is distributing. I tried getting the latest Crystal Audio driver from Apple and a solution from the interwebs that suggested disabling 802.11a. For example, unplugging and plugging the speakers back into the minijack would fix it for a while as would turning audio enhancements on and off in the control panel for one of the devices. These went away if I restarted audiosrv or reset the drivers in any way. Afterward, I started getting audio anomalies in the form of loud pops and permanent crackle distortions. To recap, I recently did a fresh installation of Windows 7 on my Mac Book Pro unibody (late 2009). I have passed the 96 hour mark with a working fix for my audio problems with Boot Camp 3.1 running Windows 7 圆4. ![]()
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