>>They spend about 45 minutes recording a two minute assignment, continually editing and starting over again.
I see. I don't have them do any editing in Audacity. I suppose they could, but I agree, the less time spent playing with the tool, the better. So I don't teach editing, and they spend less than 10 minutes for a two minute recording.
I wish someone could integrate Audacity into Moodle (without editing functions)--to cut out the attachment process. Is that feasible? The quality is so much better than anything else I have tried.