Editting flv audio

technogeek

I need revise voiceover audio in a course. However, the audio has been converted to flv and the original mp3/wav files are no longer available. I've opened the audio editor in Lectora but can't do the precise eidtting without a wave form or better controls. I only hav eot edit out a couple of words. I've tried opening the files in Audacity, but only get noise. I'm looking for solutions to this problem other than recutting the audio throughout the course.

Big thank you to anyone who helps.