didgeridoo voice

[bumblegranny]

I recently discovered that when you sing from the low end to the high end of your vocal range down a didgeridoo, your voice will skip several times between notes. The feeling in your throat is similar to yodelling except that you are not in control of when your voice breaks. The breaks are closer together towards the high end of your range, so I assume it is related to the harmonic series. Can anyone scientifically explain how the didgeridoo is able to affect your vocal cords in this way?

[Space]

it's exactly the same principle as brass instruments and woodwind,
with your vocal cords vibrating instead of the lips ( for brass instruments ) or the reed(s) ( for woodwind )

so you might find a satisfying explanation on the 'net if you research about brass and woodwind instead... I suppose they are more common than didgeridoo so it will be easier to find

[Space]

...actually I'm not sure about woodwind,
but brass instruments definately work this way. Bugle and trumpet are a good example.