Klarinet Archive - Posting 000137.txt from 2002/11

From: "Mark Charette" <charette@-----.org>
Subj: RE: [kl] Tuners
Date: Sat, 2 Nov 2002 23:08:21 -0500

-----Original Message-----
From: Karl Krelove [mailto:karlkrelove@-----.net]

I'm sure I'm working with incomplete and oversimplified information, but
doesn't the clarinet produce only odd-numbered partials (starting with the
fundamental as the first)?
----
Not quite.

The even numbered partials are present, though they are not very audible in
the chalumeau registers (2nd harmonic down -40db relative to the fundamental
at E3) but even there the even numbered higher partials contribute a small
but significant amount of energy. The clarion and altissimo ranges show
higher levels of even-numbered partials.

A more complete definition would perhaps say that the clarinet emphasizes
the odd partials and can only overblow odd partials.

See the site I put together for Dr. Jim Pyne at Ohio State some years back
that shows some spectra produced via a calibrated microphone and recorder:

http://hughes38.som.ohio-state.edu/

(it runs on the "original" Sneezy machine from 6 years back ...)

---------------------------------------------------------------------