Phonation

[Matthew K]

I’ve researched somewhat why the vibration that accompanies voiced sounds is produced in phonation, but I’m a little unclear and would appreciate some clarification.

What I’ve found so far is, simplifying a bit, that after the folds are moved together, the air pressure between them drops, so that the folds are sucked together. Then, the air pressure beneath the vocal folds blows them open, but the folds are forced back together due to their elasticity and the ‘negative pressure of the Bernoulli effect.’

Are you able to explain how these two factors, specifically the latter, work, or maybe provide a reference to some reading material? As it stands I’m afraid they’re just words to me.

Many thanks in advance.
Matt.

[Simon]

The Bernoulli effect:

+ more on this in the lecture, probably.

[Author]

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