Audio Problem!

[Revolution]

My OS is Windows XP SP3.
Recently I got wearied audio problem.
When I play any thing the sound is like scratchy old record/cassette.
So is very low,but the music is higher than voice.
I have uninstalled and then reinstalled audio driver but didn't work.
Then I have uninstalled and then reinstalled new updated audio driver from net but didn't work.
Now I have reinstalled fresh copy of OS but that didn't work too.....
I can't see any hardware conflict at "Device Manager" too.
Please help me!

 

[asingh]

^^
Which speakers you have..?

 

[Revolution]

Thanks!
But problem solved.
The audio port become too loose due to plug and unplug of speaker and headphone again and again.....
I use speaker at day and headphone at night.