Buzzing/stuttering during audio playback on xps 13 9333

I have found a solution 2 days ago Dell installed an update for dell support assist and dell support agent When i removed these programs from the Control panel the problem went away. 

I have windows 7 64 bit (dell XPS L720X).

Some background i originally had this problem two years ago and it was related to McAfee anti virus. My guess is its do to a periodic scan or something like that.  

the only thing i uninstalled was dell support assist and dell support agent had to uninstall them both. 

Uninstalling the Dell Support programs as you did should have automatically removed two system devices, Dell Diag Control Device (which is the culprit) and Dell System Analyzer Control Device. Go to the Device Manager (from the Control Panel) and look for these under System devices. If they are sill there, disable them; if not, then I don't know what to suggest, though

If you are familiar and comfortable with DPC latency detect and performance analysis software (I'm not), you should be able to isolate the problem (it's really easy to at least find dpclat.exe for free and run it to see if you are getting DPC spikes, which are the problem). I'm new to this Dell Forum, and I can't see that it's possible to put links into these postings (if it is, someone please tell me!). But search for the thread "Audio Stutters and Buzzing Caused by DPC Latency" on the SevenForums.com site; there you will get a good technical explanation of the problem (I'm assuming the underlying problem is the same in all cases) and some further good links to check out.

Randy, thank you SO much. Going into device manager and disabling those two devices worked !

Steve

I apologize for the inconvenience. Dell is aware of the problem and has a hotfix if you would like to continue to use Support Assist. You can find more on what Support Assist here on its community page.

Go here
* Under the "End User" tab, click "SupportAssist for PCs and tablets"
* Download/save the file "aulauncher.exe" to your windows desktop
* Run the file
* Reboot when done
* Download/save the hotfix from this share
* Double-click the exe file. You should get a message saying “Successfully applied the hotfix, please reboot your system for the changes to take effect”

Please let me know if you have any questions.

TB

 I've been trying to remedy this for weeks as some people said uninstalling this did not fix the audio/video problem.

What I did not realize was that delldatavault.exe runs as a service in the background. I discovered this while viewing my resource monitor and watching that particular service cause severe spikes in the CPU and disk activity which were the exact moments the interference in the audio/video would occur.

Completely disabling the service altogether, has finally relieved my migraine...

Thanks to ALL... I think the buzzing is finally gone... pretty much the answer is to uninstall or deactivate anything that has to do with Dell monitoring your computer... the final fix of disabling Dell Data Safe seems to have done the trick.  I listened to a 5-1/2 minute song on YouTube without one buzzing interruption. 

Randy, Thanks I have also been listening to that annoying interruption buzz for a few weeks.  I found this thread and you made it easy to fix.  Luke

There is no "end user" tab

Are you referring to Dell_Terry B's instructions?

Go here http://www.dell.com/learn/us/en/555/services/support-assist
* Under the "End User" tab, click "SupportAssist for PCs and tablets" [see screen shot below]
* Download/save the file "aulauncher.exe" to your windows desktop
* Run the file
* Reboot when done
* Download/save the hotfix from this share:
   pages.suddenlink.net/downloaddell/SupportAssist-Hotfix-20150214.exe
* Double-click the exe file. You should get a message saying “Successfully applied the hotfix, please reboot your system for the changes to take effect” -- Dell_Terry B