I know I’ve seen some post somewhere regarding this question but the answer was a bit vague and now I’ve having to deal with the issue as well.
I was hoping someone would be able to provide a straight-forward easy to understand explanation as to why this phenomena occurs to some audio files and seemingly unaffected for others.
Case in point, I recorded a couple of vocal tracks. 2 part harmonies. After some time working on the project, I went through both of the audio tracks and used VariAudio to time stretch both audios to be in sync with each other. It was a very minor adjustment since they weren’t off by much.
Then after editing both of the tracks, I clicked Music Mode for one of them and it switched to the mode without issue. However, when I did the same to the other track; the overall length of the track increased and the audio in the track slowed down. Totally out of sync with the other track and the overall project.
I had to take the track out of Music Mode in order to resume my work but I wanted that audio track to be in Music Mode ideally; because I may want to increase the tempo. At this point, without understanding why this particular track behaved differently from the other, I am at a mental block and could really use some help.