fasle beats mystery

[David ilvedson]

> Date:          Sat, 03 May 1997 18:50:06 -0400 (EDT)
> From:          Jon Page <jpage@capecod.net>
> Subject:       Re: fasle beats mystery
> To:            pianotech@byu.edu
> Reply-to:      pianotech@byu.edu

Try moving the lid up and down when someone is playing or
tuning.   Interesting effect...

> I notice the Doppler effect when someone walks by the piano.
> They sometimes try to be so quite but it doesn't matter, the
> mere fact of being there disturbs the vibes,  man.
> Jon Page
> Harwich Port, Cape Cod, Mass. (jpage@capecod.net)
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> At 04:00 PM 5/3/97 -0700, you wrote:
> >The fan blade chops off pieces of piano sound and sends it back to our
> >ears with a doppler-shifted pitch!  Just like the old submarine movies
> >where you hear the SONAR sounds in the background.  When sound is coming
> >toward you the pitch is higher than when it is going away.  When it
> >mixes with the sound your ear gets directly from the piano--instant
> >false beats!
>
> >Warren
>
> Jon Page
> Harwich Port, Cape Cod, Mass. (jpage@capecod.net)
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
>
ilvey
Pacifica, CA
ilvey@a.crl.com