How To Throat-Sing
STEP 4: A small vent-hole
Make a small vent-hole between one (or both) side(s) of the root
of your tongue and the roof of your mouth (or your side-teeth). In
other words, a small portion of the contact zone between the tongue and
the roof of the mouth (or side-teeth) is now opened. The air goes through
the vent and passes by some of your grinding teeth. If you hold your nose
now, you'll be able to breathe through this vent only.
Keep this vent hole as small as possible. If you breathe now, you
will hear a sound like "hu" of the English word "human", with
"pink noise" instead of your voice.
Your oral cavity has just become an "instrument" for throat-singing.
Special thanks to Dan.
He translated all of these instructions.
Saga J Haruhiko