The audio sample rate is fixed at 11024 and I cannot change it. When rendering video either to the computer or to a DVD (I tried all different combinations of settings), there is a faint clicking sound throughout the video. There is no clicking sound when I preview the movie in Magix Exit Pro Plus 17. My program has the patch and is up to date. The file has a mix of audio sources and I feel like there is a codec issue with one of the sources, but I cannot figure out which source. I tested a new project and I did not get the clicking, so it is definitely a compatibility issue with the program and an audio source. The odd thing is all audio plays correctly, but the clicking sound is uniformly through the movie.