Have no idea - But I do this another way and have near to Zero problem with Audio in any of my projects in iMovie or FinalCut.
• I never use any .mp3 audio or other alient formats - all converted to .aiff 16-bit 48kHz or 44.1kHz
• In iTunes I do
- Collect needed sounds into a New PlayList
- BURN this as a standard Audio-CD (still .aiff - not .mp3)
- use the files on this CD in my movies
And by doing so I nearly never get any problems with AUDIO - I hit a lot of other's - but this is very rare to me.
Yours Bengt W
Thanks Bengt for your input. I am still on that very steep learning curve with creating and managing audio and your comments have helped me to understand some of this. Quality was not so important for my project, so I stuck to the MP3 format.
I have solved my problem: re-started my iMac and when I opened iMovie I could see several copies of my audio which were not visable previously and by deleteing them I was able to add in my MP3 file and all is well.
iMovie had dropped out / shut down several times during the work I was doing, and I guess that this was part of the problem.