Agree. The only question is should it be real-time or post process. There was real time transcription at DEFCON last year (my first time at that con) and while it was occasionally humorous, and occasionally confusing, it was almost always useful as a fallback when you couldn't quite hear the speaker, and also particularly during Q&A when the discussion wasn't well mic'd.
So I would say transcription is a must have and even real time transcription is a feature a large portion of attendees will benefit from, not just those who can't hear well, unless your conference space is fairly small or your sound system is truly excellent.
I guess it's also worth considering why the sound systems for these conferences are so epically bad. For example, what's with passing around microphones when we are all already carrying our own personal mic?
So I would say transcription is a must have and even real time transcription is a feature a large portion of attendees will benefit from, not just those who can't hear well, unless your conference space is fairly small or your sound system is truly excellent.
I guess it's also worth considering why the sound systems for these conferences are so epically bad. For example, what's with passing around microphones when we are all already carrying our own personal mic?