Distortion noise from speaker

You don't say what you done to try to fix it.

Have you first tried this?

Possibly corrupted sound drivers or settings.

• Go to Device Manager and uninstall all devices to do with sound.
• Click on the little > in front of "Sound, video and games controllers, right click on device, select "Uninstall device", in box that pops up check the box by "Delete the driver software for this device" (may be corrupted) and click Uninstall box.
• Restart your laptop. Windows should reinstall all the drivers. After reboot confirm all drivers have properly reinstalled by checking in the Device Manager where you were before.