I have numerous MP3 (and perhaps files in other audio formats) whose meta-data tags (ID3v1 and/or ID3v2 for the case of MP3) include Hebrew characters in CP1255 charset (or ISO-8859-8i, essentially the same thing for our purposes). But - some tags are in UTF-8. I notice this when loading files in, say, Amarok - some show up as gibberish (UTF-8 decoding of CP1255), others properly.
I would like to convert all tags, at once, to UTF-8, assuming they're in CP1255 or ISO-8859-8i). How can I do this?
I'm running Debian GNU/Linux (version: Stretch). Command-line solutions are perfectly fine as are GUI-based ones.