sporadic noise events; hard to find common denominator

September 24, 2012 at 11:59:48
Specs: Windows 7, i7, 4gb
Occasionally, my sound is interrupted with noise. This noise is like static in the least obnoxious cases, and modulated like a lawn mower in the worst. It never lasts more than a few seconds. Sometimes it correlates with the loading of a web page, suggesting that the stream buffer is getting corrupted by sharing some resource with another process, but that's not always the case. It happens with Pandora, Spotify, iTunes and Skype (i.e., it's not an application, and it's both stream and local), and it happens both on the system speakers (IDT High Definition Audio CODEC) and my 2-Plantronics BT300 headset. I.e. it's not a device. It did not go away when I switched from DSL to cable--still using the same Linksys SRX200 router.

Other participants on Skype calls don't hear it, so it's isolated to my system.

Dell Studio 1747, i7, Win7, 4GB RAM. System monitor shows spikes in processor time and interrupts, but not in network activity (though I didn't see one that correlated with a page load while testing).
Task manger does not show any unusual process on top during a spike.

Any ideas?


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#1
September 26, 2012 at 09:47:18
Dell is suggesting I restore (i.e., reimage) my system. Other ideas would be really welcome right now. Thanks.

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#2
September 26, 2012 at 13:25:01
Hi,

Before restoring your system back to the date when it was working fine, I can recommend updating the Audio driver of your computer by going to this URL: http://www.dell.com/support/drivers...

If the issue still persist, kindly boot the system in “Safe mode in networking” and check if the issue occurs.

Thanks & Regards
Debbie B
#iworkfordell


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#3
September 27, 2012 at 04:56:58
Thanks; already updated the driver. There's no sound in safe mode, so you can't test that. I'm thinking of disabling Skype and iTunes and seeing what happens -- they seem to have a record of stepping on things . . .

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Related Solutions

#4
September 27, 2012 at 08:49:36
Hi jay,

Thanks for replying. Please do that and let me know if that fixes the issue.

You can even try creating another User account and check if the symptom appears in the New User account.

You can refer to the URL mentioned for creating a New User account: http://windows.microsoft.com/en-IN/...

Else, If this issue started occurring after doing some recent software changes on your computer, then I would suggest you to restore your system back to a date when it was working fine. System Restore will affect Windows system files, programs, and registry settings only.

For System Restore steps, you can refer to the URL mentioned: http://windows.microsoft.com/en-US/...

Share your comments if it solved your problem.


Thanks & Regards
Debbie B
#iworkfordell


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#5
September 27, 2012 at 09:13:54
Is it possible to get a list of things I've installed since the restore point? So I can make sure I have the media or keys before I jump.

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#6
September 27, 2012 at 10:12:02
Hi,

Please check the option “scan for affected programs” in the figure in URL mentioned:
http://windows.microsoft.com/en-US/...

When you click on this option it will show you the list of all programs which will get affected if you restore back to a particular date.

System Restore affects Windows system files, programs, and registry settings. It can also make changes to scripts, batch files, and other types of executable files created under any user account on your computer. System Restore does not affect personal files, such as e-mail, documents, or photos, so it cannot help you restore a deleted file.

Thanks & Regards
Debbie B
#iworkfordell


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#7
September 27, 2012 at 10:23:46
Thanks. Hmm. I don't have a restore point more than a couple weeks ago. I'm going to keep looking (trying to develop a script to isolate which process is going bats when the problem happens) before full restore.

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#8
September 27, 2012 at 13:03:02
Hi jay,

To isolate the problem you can even try disabling the Skype and Itunes services and check if the symptom appears. Keep me posted if any of these troubleshootings steps work for you.

Thanks & Regards
Debbie B
#iworkfordell


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#9
September 27, 2012 at 13:13:41
Already done: tried disabling itunes, skype, plantronics, and gotomeeting. no dice.

I do notice it's a lot worse on web conferences and pandora than it is on grooveshark and itunes.


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