Re: Pitch & fundamental frequency


Subject: Re: Pitch & fundamental frequency
From: Kevin Austin (kevin.austin@videotron.ca)
Date: Wed Sep 07 2005 - 09:52:51 EDT


Yes. The point exactly. I was played (sic) a tuba that couldn't be
played in tune as the "open notes" were shifted all over the place.

This example is a reference to "intuitive" and counterintuitive. I
tend towards the terms "naive" and (an opposite) listening.

Best

Kevin

At 09:03 -0400 2005/09/07, Ian Stewart wrote:
>Kevin Austin writes:
>There are other 'intuitive' things in acoustics which are incorrect.
>The most blatant being that brass instruments produce the harmonic
>series. Brass instruments are pipes stopped at one end, and
>therefore produce the odd-numbered partials (.5, 1.5, 2.5, 3.5 = 1,
>3, 5, 7 ...).
>
>Perhaps I misunderstand, but brass instruments are more complex than
>simple closed tubes. The piping acts much like a closed tube, but
>the mouthpiece and flare shift the partials significantly, producing
>something approximating a complete harmonic series (the flare raises
>the lower partials, while the mouthpiece flattens the higher ones).
>best,
>Ian



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