Change BPM of wav file without affecting sound

Ok, I fumbled a little trying to explain this earlier (I think) which made it difficult to find a solution.

But now I have and thought I'd share it quickly here.

Basically when you get some audio from someone else that was recorded in a different bpm than your project where this is going into, it will mess up if using flextime. What to do is really simple: make sure the bpm of your project is correct, select audio, click "Edit" > "Tempo" > "Write Project Tempo to Audio File".

That's it and flextime will work fine.

Thank you for replying. I agree and I changed the project bpm from 120 to 160 so that the metronome matched the drums playing.

The problem seem to occur when activating flextime. I have 8 drum tracks grouped and it could be that the problem is elsewhere and not bpm-specific as first thought. After flextime analyse for transients it for some reason speeds up the audio during playback and some audio tracks gets shortened/cut off.

Guess I'll just have to start over and be very aware of every step going forward as to recognize when something wrong happens...