|May3-11, 10:07 AM||#1|
Relation between cavity resonance and sound speed
Our sound will be like "Donald Duck" if we inhale helium gas and the explanation from web is because" The cavity resonances which determine the vocal formats would be raised by the higher sound speed,"(http://hyperphysics.phy-astr.gsu.edu.../souspe.html).Why cavity resonance raise as sound speed raise?
|May3-11, 01:56 PM||#2|
wavelength depends only on cavity size
frequency depends on … ?
|May3-11, 11:01 PM||#3|
However, some says that the frequency is only depend on vocal folds and it is independent of the gas.And the only change is the timbre.
Both explanation looked convincing but i don't know which is true.
Besides,why the cavity resonance is raised when sound speed get higher(cavity size remains same)?
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