Using SpeedScriber with Apple Final Cut Pro X
SpeedScriber 2.0 now has export to iTunes Timed Text (.itt) for use with the new closed captioning features in Final Cut Pro X. See this excellent tutorial from Ripple Training (https://youtu.be/aKZelGihd2g?t=2m17s) on how to work with SpeedScriber.
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Many thanks to EditStock (https://editstock.com) for providing the clips used in these tutorials.