One of the most important things to know about Descript is that there are two main typing modes: Editing Media (default) and Correcting Text.

In Editing Media mode, cut/copy/paste/delete affects the underlying audio/video in addition to the text - and you can only type punctuation.

If you want to make corrections to typos made by the automatic transcription, enter Correcting Text mode by pressing Command + E  on Mac, or Ctrl + E  on Windows, or clicking the dropdown in the upper left of your script:

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