Yachtsman1 : I normalized the tracks because the original audio levels varied greatly and I amplified one of them (wind in trees). It was done the same way you show: to -1.0 dB. The 3 tracks were separate in PTE. Hint: If PTE could export the sound track compilations, complete with envelopes, into one track that could be processed in Audacity, that would be a plus. davegee: I don't know what the other shows were published to but with one other exception, I suspect they weren't mp4s. In fact the "experts" in this case refuse to run PTE EXE shows saying only a Mac computer can run shows and their bias is Pro Show published to a Mac. To run PTE shows on their gear, I and one other person had to publish to mp4. His show seemed OK (I think it was an mp4, I'll check.). I have put together several PTE shows before and sound was never a problem. But then they were published as EXE.