The best way to perfect the swoosh sound and hit a golf ball straight is to lock in a straight ball flight alignment during your setup routine.
You often can observe other golfers, including professional players, practice their golf swings until they hear a swoosh sound at a specific level or degree of their practice swing. They know you must hear the swoosh sound to hit a golf ball straight.
Then they try to swing at the same level during their actual swing, believing it will replicate the swoosh effect of their practice swing and, in turn, they will produce straight golf shots.
When you hear the swoosh sound during the impact zone of a practice swing, it will indicate that your clubface released perfectly during the impact zone to hit a golf ball straight.
That is to say, when you hear the swoosh sound during your practice swing it will indicate the arc of your swing bottomed-out perfectly during the impact zone.
This would suggest if you could swing your club at the same specific level during your actual golf swing, your clubface should contact your ball squarely on a swing path that should match your target line, and in turn your ball should fly on a straight path to your target..
However, this is not a reliable golf method.
It almost is impossible to replicate the swoosh effect of a practice swing during the actual swing unless you lock-in a square alignment and an on line swing path during your setup routine so that, irrespective of the level or degree of swing, the down swing will deliver a square clubface to the ball on a parallel path with the shoulders so that the ball will fly straight to the target.
Unless you lock-in a square alignment and an on line swing path of your clubface during your setup routine to lock-in a straight ball flight alignment, the alignment and swing path of your clubface will change in response to any body movement between the time you grip your club and the completion of your setup routine.
Consequently, the level at which the swoosh sound occurs during a practice swing will correspondingly change between the time you complete your grip and the time you complete your setup routine in response to any such body movement during the setup proceedings.
Therefore, golfers who try to swing at the same level during their actual swings as during their practice swing, when they experienced the swoosh effect, will mishit their golf shots.
The alignment and swing path of their clubface simply will rotate to a different alignment and swing path as a result of any such typical body movement during your detup routine.
Consequently, the only way that you can take advantage of the swoosh effect and improve your golf game is to lock in a straight ball flight alignment during your setup routine.
Then when you assume a comfortable stance to your ball, center the sweet spot of your clubface as near as possible to the back of your ball, align your shoulders parallel with your target line and execute a simple golf swing you will experience precisely how to hit a golf ball straight.