Is there a way how to convert .ipsw files to .mp3 format?
Converting iPod And iPhone Software Update Files directly to MP3 Audio Files (.ipsw to .mp3 conversion) is not possible, simply due to the radically different nature of both file types.
We are not aware of any multimedia editing software or (online) conversion tool capable of converting IPSW to MP3.
In a word, direct ipsw to mp3 conversion is not possible.
So don't expect any so-called ipsw to mp3 converter or ipsw to mp3 free online conversion tool available.
The database currently does not contain any ipsw software converter.