Ingmar Roerdinkholder <[log in to unmask]> writes:
> I had a colleague from Vietnam, and when I overheard her speaking
> her language with compatriots I understood what 'creaky vowels'
> mean.

Hmm?  Does Vietnamese have creaky vowels?  Maybe as a secondary
articulation of one of its tones or so?

What does have creaky voiced vowels is Khmer.  I had a recording
somewhere and was unsuccessfully searching it.  :-(

Voice of America has Khmer, you can listen to radio broadcasts:

(On the bottom of the page, there are RealAudio streams)