I downloaded a “Linux ISO” which came as a series of *.opus files. My iPhone doesn’t recognize them, so I was wondering if you guys might recommend a program to convert them to *.mp3 files.
Ideally a mac or linux based program with a gui. Any suggestions?
Install Audacity, and follow the instruction to add ffmpeg.
From there you’ll be able to open most audio files out there and then export it to another format like mp3.