Finally, perhaps the greatest barrier is the acquisition of the actual dictation skill. While it really is as easy as just speaking, many people are unprepared when they turn this feature on and in the absence of speech, filler words such as "like", "um", "so" may be inserted either consciously or unconsciously which the computer will of course pick up. I have always recommended utilising this tool sparingly and in short increments at a time (one to two sentences).