Here are two fun videos that illustrate two very different results when captioning music.
The first is lyric video for One Direction lyrics as captioned by You Tube’s auto captioning system. (You can also view the results of Taylor Swift’s lyrics)
Machine translation does have a role to play in providing access and despite these funny videos continues to improve but that is for another blog post.
Continuing on, compare the above with the fantastic skill of this stenographer and watch them subtitle Eminem’s Lose Yourself in real-time (music starts at 1:35 in).
Stenography is also used to caption/subtitle live television – see #subtitlefail! TV