15. The non-transitory computer-readable medium of claim 14 , wherein the computer-executable module is further configured to: identify a second uncertain region in the item of textual content; identify a second region of the item of audio content that is preliminarily aligned to text of the second uncertain region; generate a textual transcription of the second region of the item of audio content; determine that the text of the second uncertain region does not substantially correspond to the text of the textual transcription of the second region of the item of audio content, convert the text of the second uncertain region to a first phoneme string; convert the text of the textual transcription of the second region of the item of audio content to a second phoneme string; determine that the first phoneme string substantially corresponds to the second phoneme string; and generate second content synchronization information wherein the second content synchronization information facilitates the synchronous presentation of the second uncertain region and the second region of the item of audio content.
15. The non-transitory computer-readable medium of claim 14 , wherein the computer-executable module is further configured to: identify a second uncertain region in the item of textual content; identify a second region of the item of audio content that is preliminarily aligned to text of the second uncertain region; generate a textual transcription of the second region of the item of audio content; determine that the text of the second uncertain region does not substantially correspond to the text of the textual transcription of the second region of the item of audio content, convert the text of the second uncertain region to a first phoneme string; convert the text of the textual transcription of the second region of the item of audio content to a second phoneme string; determine that the first phoneme string substantially corresponds to the second phoneme string; and generate second content synchronization information wherein the second content synchronization information facilitates the synchronous presentation of the second uncertain region and the second region of the item of audio content. 18. The non-transitory computer-readable medium of claim 15 , wherein: the computer-executable module is further configured to generate an acoustically confusable hypothesis for the second phoneme string; and the first phoneme string substantially corresponds to the second phoneme string if the acoustically confusable hypothesis for the second phoneme string is at least substantially similar to the first phoneme string.