Date: Wed, 10 Mar 1999 17:45:00 -0500 (EST)

Author: Richard Berg

Subject: Re: Missing Fundamental


On Thu, 4 Mar 1999, Clifford Bettis wrote:

> Dick,
> I wonder if you, or someone else, who has one of those nice Tektronics
> scope/spectrum analyzers could try it on a spinet? I played bass notes from the
> keyboard, and saw little, if any of the fundamental. I am not completely sure of
> this because of the initial transient and the relative slowness of my spectrum
> analyzer.
> Cliff
We have a bunch of FFT spectrum analyzers, none of which I can take home
to look at my harpsichord or piano. However, you are correct about very
little fundamental being present in many tones. In fact, the lowest notes
on the piano are below the audible frequency range, so all you hear is
harmonics and your brain inserts the fundamental. Other instruments,
including the voice for some sounds, have such a large number and
amplitude of overtones that the fundamental might as well not be there.

Dick Berg