Music Feeds says Apple can use the new technology to potentially replace swear words with other words, delete them from tracks altogether, or bleep them out. Another possible method would be to generate background music so that the track continues seamlessly without any interruption. Apple may also use the new censoring software for audiobooks, to also edit out sex scenes as well as curse words.
The system will compare each word in songs or audio books to a library of explicit terms in order to identify the ones that were X-rated.