AUDIO TYPING FROM lIVESCRIBE PENCAST OR MP4

Typing up a round of comments from participants at the end of a training course. Identifying voices of each participant 1 to 8 so that their comments are typed against a number. Audio typing from a recording of voices of participants so not ultra clear. Recorded on Livescribe Echo pen - so will be in Pencast or MP4 format and emailed. Very short recording of a few minutes. To be typed in word format and emailed back to me. Urgent.
Current PA cannot access audio files in this format. Requires advanced Adobe Air version? (downloadable free)