You absolutely understood my problem. Both film and telecine are at 25 fps. The recordist did exactly what you said.
[Michael Gissing] “So copy all the audio to aif files and before you import them into FCP make sure your easy setup is on 25fps. The aif files should have a slight name change so when batch converting, add a prefix. Do not change the sample rate as the sync drift is due to FCP interpreting a frame rate.”
If you mean export all the audio files with compressor to aif files and then import them in FCP I already tried it: it works but it merges the 4 tracks of the WAVE files into a single stereo track. As I said above the WAVE files have 3 to 4 tracks, each one recorded with a different microphone at the same time.
Is there a way to do this without merging the tracks?