So, most of us Hmong aficionados have most likely seen the White Hmong Language Lesson
by Whitelock floating around the net, it's been there for a good few years. Well, after an exploratory email to CURA (university of Minnesota) on my part, I managed to get them to upload the audio! It 's not the best quality, as it was recorded in the field, but it's still workable. Especially given the state of Hmong language resources.
Here are the links:TextAudio