Steps to reproduce:
1. Generate presenter and presentation with same audio track
2. Run the workflow to use the editor
3. Listen to the editor audio and compare it with the original
The audio track sounds like it is recorded in a cave. It makes it difficult for a producer to assess the actual audio quality of a video while editing and would not know if it is an actual problem until after transcoding.
Allow the preview video generation to use only the sound track of one of the videos instead of using a mix of a1+a2.