dv6853cl Crackling sound playing mutimedia with speakers or headphones [ Edited ]

[lynchknot]

I have a dv6853cl and have a sound crackling problem. The only time it didn't crackle was when I was running Linux Mint (dual). I now have a clean install of windows 7 ultimate and the laptop speakers and headphones crackle. Turning off the wireless card or disabling through device manager made no difference.

At very low volume it doesn't crackle or i just don't notice it.

[lynchknot]

This is how bad it sounds. I will never buy HP again if this can't be solved: 

http://rapidshare.com/files/331375048/VORC001.WAV.html

MD5: B02BDC0A9D4EDC247C027D7910E162E1

[lynchknot]

Problem seems to be solved with "Vista_Win7_R240" although all of the fancy audio GUI is missing.

[lynchknot]

Distortion is back and it sounds different.  It sounds like some kind of intermittant electronic buzzing sound.

[bdkreitz]

Lynchnot, I am curious.  If you unplug your AC adapter from the laptop while listening to audio though your headphones/external speakers, does the issue go away?

[lynchknot]

I think I found the cause and solution. I was/am also having a problem with applications often "not responding". When I applied the solution below from this thread: http://social.answers.microsoft.com/Forums/en-US/w7performance/thread/ae9468d9-168e-44ef-a54b-b4812f... - the sound issue went away. Unfortunately the static issue returns the next day or so....

1.    Turn Off the Laptop.
2.    Disconnect all the external devices and AC power adaptor.
3.    Turn the laptop upside down.
4.    You will find a long compartment in the upper side of the laptop.
5.    Slide the latches beside the battery compartment. This would open the battery compartment door and battery would pop up.
6.   Remove the battery from the battery compartment.
7.   Press and hold the Turn ON button for 60Seconds (to remove static electricity).
8.   Place the battery back in to the battery compartment and close the compartment door.
9.   Please connect the Ac adaptor.