For proper pronunciation, Pandit Dakshinamoorthi has provided a video recording at YouTube. www.youtube.com/watch?v=m5_VCQFuIN4 Good Luck.
Check this link. You'll find the solution. http://www.indusladies.com/forums/pujas-prayers-and-slokas/66149-any-slokas-get-rid-rahu.html