When making films i always convert 23 to 25fps (being in a pal area) but sometimes when i use time warp in goldwave to alter the speed of the sound the left and right audio chanles dont match up every so slightly out of sync with each other making for a very effective sound effect that is very distracting and off puting when watching a film.

Could it be something to do with the window size/search rage you know the little settings in gold wave??. Or can i use another program to alter the time/speed of the sound that will not end up with the land right channels out of sync