Can I transcribe FaceTime audio call logs?

[Kevbasscat]

I have 3 or 4 FaceTime Audio calls that mean a great deal to me. Is there a way to transcribe the conversation from the call log, or is it an encoded audio log? Either way, How can I transcribe or decode the audio? Is it possible? The calls were made on an old iPhone 4G, in 2016. The logs are saved in console on my early 2009 iMac, running El Capitan 10.11.6 via continuity or whatever they called it back then. Any help would be greatly appreciated.

Is this the correct place for this thread?

 

[Kevbasscat]

I have consent from both parties. Myself and the other person, if that helps. We would both like to read them or listen to them. Is there an Apple policy against this?