[Phys-L] Re: sound frequency in helium

[Chuck Britton <britton@NCSSM.EDU>]

This should be an easy experiment with today computers (with sound
input) and an FFT program.

Same fundamental frequency?

If so, I would expect the same hierarchy of harmonics.

Are we hearing the same spectrum of frequencies with the intensities
shifted into the higher (but identical) harmonics?

But of course the 'real' answer is that it is a very complex system
that demands much more study.


At 10:48 PM -0700 4/17/05, Marc Kossover wrote:
> --- "Folkerts, Timothy J" <FolkertsT@BARTONCCC.EDU>
> wrote:
> >  It is only sort of a change in pitch.
>
>
> This is an important point.
>
> The vocal sound of a person who has breathed helium
> isn't just higher; it's weird.
>
> A spectrum analyzer will still show the same
> fundamental, but it will also show a shift to higher
> harmonics.
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