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Sound stutters / hitches

  1. When the performance in game is very low and the graphics card is struggling for FPS it may affect the sound. So first and foremost, make sure that your graphics card meets the minimum requirements of The Witcher 2. Charts like this one (when ordered by 3DMark Graphics Score) or this one for mobility graphics cards  may help you assess that.As compared to newer graphics cards The Witcher 2’s minimum Nvidia Geforce 8800 GTS’s performance in games is comparable to that of GeForce GT 630, and AMD Radeon HD 3850’s performance may be compared to that of Radeon HD 6570.
  2. Make sure that your sound card drivers are up-to-date.
  3. Only for Windows XP: Try changing the Sound Acceleration settings with the use of DirectX tool. Go to Start -> Run, type dxdiag in and confirm with Ok (Enter). In the Sound tab move the slider to the left (to reduce acceleration) or to the right (to switch to full Hardware Sound Acceleration). Finally close dxdiag.

See also

nVidia GPU crashes- driver reinstallation

Sometimes, updating drivers without uninstalling previous version might cause GPU to crash. To completely uninstall drivers please download this application:

http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

After uninstallation is finished, download newest drivers available for your GPU from here and install them using “Clean install” option:

http://www.geforce.com/drivers