Translations:Archive:Kdenlive/Manual/Windows Issues/59/en
Audio crackling while playback
Hit CTRL + SHIFT + ,(comma), select and play around with (Win7), (Win10), to see what give the best result.
Hit CTRL + SHIFT + ,(comma), select Playback -> audio backend and play around with WinMM (Win7), Wasapi (Win10), DirectSound to see what give the best result.