Re: square wave harmonic theory (time domain)

On Jun 1, 6:42 pm, Jim Thompson <To-Email-Use-The-Envelope-I...@My-Web-
Site.com> wrote:
On Fri, 01 Jun 2007 17:37:35 -0700, John Larkin



<jjlar...@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
On Fri, 01 Jun 2007 16:55:38 -0700, Don Lancaster <d...@xxxxxxxxxx>
wrote:

MooseFET wrote:
In the case of the bell, the bell selects the frequencies near its
resonance from the input. If the input is a repeated waveform such as
striking at a constant rate, this input only has harmonics of the
stike rate in it. Since the bell can't create new frequencies, it
must select from those harmonics.

Not even wrong.

The response is the convolution of the forcing function against the
natural one.

Not if it's an oscillator, and not if it's nonlinear. A pipe organ is
both.

John

Uh? You're tip-toeing thru the tulips there, John. In an oscillator
the forcing function IS the oscillator non-linearity.

Yes but it certainly isn't the air supply to the pipe. In cases like
the organ pipe, the tuned system determines the frequency of the input
function to the tuned system.

This makes it very different from the case of the bell.

Don't get me started on Lyopanov ;-)

Awh why not?

.