Pronouncing the "x" in Na'vi

[Suteyä Hawnuyu]

I was wondering how you are supposed to pronounce the "x" letter in Na'vi. It is very prominent in the language, and I am not quite sure how to speak the letter.

Some x words:

kaltxi
fpxakim
rutxe

Thank you! 

[wm.annis]

I was wondering how you are supposed to pronounce the "x" letter in Na'vi. It is very prominent in the language, and I am not quite sure how to speak the letter.

The letter x does not represent a single sound in Na'vi, but is always used in the groups px, tx, kx to represent what are known as ejective consonants, much like English uses h to indicate different sounds like th, ch, sh.

See this thread.