Strike Tone not Yielding same beatspeed

[Michael Jorgensen]

Hi ric,
      C5 is the lowest coincident partial  or lowest common harmonic
between F2 and Ab2.  The idea is that by holding down the F2 and Ab2 so
their dampers are off the strings, then strike C5.   This starts the
partial singing without adding to the tone or confusing the beat rate,
since C5 has a damper.  This technique is most useful to beginning tuners
to hear beats or locate partials more easily.
-Mike


Richard Moody wrote:

> What is a "strike tone".   What is C5 supposed to do with the beat
> rate of F2--Ab2?
> Why C5?  Why  not C4 or C3?   Do these then produce differences from
> C5?   ---ric
>
> ----- Original Message -----
> From: Michael Jorgensen <Michael.Jorgensen@cmich.edu>
> To: <pianotech@ptg.org>
> Sent: Tuesday, May 29, 2001 7:25 AM
> Subject: Strike Tone not Yielding same beatspeed
>
> | Hello,
> |      Steinway B,  F2-A flat 2 minor third tested using C5 as strike
> tone
> | yields a significantly faster beat speed than listening to the
> beatspeed
> | by playing the minor third by itself.  This happens with single
> strings
> | or when testing the whole unison.
> |      What is the reason???  F2 is the lowest plain string with weird
> | inharmonicity perhaps?  How can the strike tone clearly yield a
> | different beatspeed?  Perhaps Virgil Smith has an answer??
> | -Mike Jorgensen
> |