How does the wind organ in this youtube video work?

theBEAST

http://www.youtube.com/watch?v=AuYFc...feature=relmfu

at time 34:35. He says it depends on how fast the air is flowing by? So does that mean the velocity of sound in the equation f=nv/2L change? How are the different sounds produced?

Michael C

It's not the velocity of sound that's changing, its n that is changing in the equation f=nv/2L. The different notes are different harmonics, corresponding to different integer values of n.

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theBEAST	How does the wind organ in this youtube video work? Tweet http://www.youtube.com/watch?v=AuYFc...feature=relmfu at time 34:35. He says it depends on how fast the air is flowing by? So does that mean the velocity of sound in the equation f=nv/2L change? How are the different sounds produced?

Michael C	It's not the velocity of sound that's changing, its n that is changing in the equation f=nv/2L. The different notes are different harmonics, corresponding to different integer values of n.