Garbled Sound

Hello,
A few days ago, I had a power outage while I was online...Everything about my computer seemed ok after I rebooted, but when I went to a certain web site to listen to music, it sounded like all the instruments were not in tune with each other (like a bunch of kids trying to play music for the 1st time!). I used the Direct X diagnostic tool @ the Music tab and tested : MIDI Mapper & Sound Scape MIDI Synth (330)...I heard music, but it sounded garbled just like the web site!
Can this be fixed without replacing any parts?...All other sounds are ok ( mp3, cd rom, etc.).

Kindly,
James M.

 

Reinstall sound card drivers. Did DxDiag notify about corrupted DirectX files? If that doesn't help, need new sound card.

 

Thanks, I will give it a try....Can't remember if Direct X said anything corrupted files.
J. M.

 

I believe I need a new sound card.
James M.