Does anyone know of a way to convert an mp3 file on an iPhone to an m4r file? There is no file system and file system manipulation available natively in iOS 13 that I know of.
In the past, I've downloaded songs on my Windows 10 laptop and simple changed the extension, then used Audacity to make a clip of sufficient length and saved it. Then, I uploaded the file using dropbox and retrieved it from thence using the iPhone. I can no longer do this because I hosed up my Dropbox accounts when I changed ISP some months back.
I'd be much obliged if anyone could tell me how to do this or point me to a wiki.


