I have historically done my own transcription for closed captions on my company&#x27;s YouTube videos (we have a policy to never post a video without captions, as accessibility matters to us), but recently started outsourcing it to a friend on fiverr. We&#x27;re close and she knows my accent well, and hears me talk about the subjects of the videos now and then, but even she has to verify some stuff with me along the way. I don&#x27;t have an exact number for errors, or how often she has to verify words and phrases with me, but it&#x27;s higher than I would have expected.<p>I also recall when I worked in television, we&#x27;d have someone come in to do captions for the Rockets basketball games...they made a <i>lot</i> of mistakes. Maybe every other sentence had a mistake in it. Partly this was the speed at which they had to type (using a Stenotype style device with chording keyboard), but I suspect they were also mis-hearing things quite often.<p>In particular, technical terms (whether for computers or basketball) are elusive if you don&#x27;t speak the language. &quot;WYSIWYG&quot; was a tricky one, in one of my videos.