Exporting/transcribing audio from published Captivate courses

Hello!  I need to recreate two Adobe Captivate courses in Storyline.  These Cap courses contain audio narration.  The problem is, I don't have access to the source files.  I can only access the courses through my employer's LMS.  Is there any way to export the audio narration from the published courses?  Or, is there a free software tool I can use to transcribe the audio narration?  I'm not hopeful, but I thought I would ask.  It will be really painful to manually transcribe the audio narration, especially since there is no pause button in these courses.  I'll have to keep replaying the slides.

Thanks in advance,

Shannon Siwicki