Open mouth overtones

by Sauli Heikkilä

May 8, 2012

In this forum might be also a title ”Singing..."

I could ask this direct from Rollin or Wolfgang but maybe somebody else is also interrested.

If we filter overtones in mouth by tonque, we get low overtones from large space and high overtones from small mouth. Makes sense, longer waves fit in large space. But when I filter overtones by opening mouth, I get high overtones by opening my mouth wide open and low by closing it. Understand? What is the physical explanation?

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  • up

    Wolfgang Saus

    Hi Marco,
    where does this theory with the converse volumes in two-cave-techniques come from? My own investigations show a significant lowering of the 3rd formant when rising the tongue tip to the pallet. Not effect on the first formant.

    May 8, 2012

  • up

    David Stuetzel

    kind of video respose ;-)

    


    May 8, 2012

  • up

    Sauli Heikkilä

    Thanks for responding and specially Daniels video, which did not give answer but great ideas. And no, Jens, I am still looking for it. Formant-theory is good, but I have to try it to get full understanding. Thanks again.

    May 9, 2012