12. A computer-implemented method comprising: providing, by a processor, an interface displaying at least a portion of a transcript, the interface configured to receive a command selecting one of a plurality of words of the transcript and a desired edit from a plurality of permitted edits to the transcript, wherein the command is restricted to selection of a single word, wherein the plurality of permitted edits is restricted to prevent edits to a plurality of time index markers associated with the transcript; receiving, by the processor, data via the interface selecting a word from the transcript and the desired edit; and editing, by the processor, the transcript in response to receiving the selection and the desired edit, wherein editing the transcript comprises editing only data relating to one or more of the word selected by the received selection and a word adjacent to the selected word.
15. The method of claim 12 , wherein editing the transcript further comprises: inserting a new word adjacent to the selected word in a sequence of words included in the data defining the transcript; and setting duration data included in the data defining the transcript and associated with the new word to a value of zero.