A=444 Hz

[John Meulendijks]

Negligible it is..... also without tuning equipment:  A3 being slightly less
than 222 and F3 being slightly less than 111 hz times  2 power 2/3 , is
1.587401052...times110 = 174.6141157.....hz.   This interval produces beats
on the fifth partial of F3 and on the fourth of A3, would be slightly les
than 873.0705786 hz and 888 hz. This creates 14.92942.....beats pro second.
Theoretically spoken.
In for example the Reblitz book there is a simular illustration on page
41giving the digits for 440 instead of what is the issue here: 444 hz. For
three digits behind the . there is no difference.

Being a tuner it amazes me how much difference there is between the actual
impression and calculated figures. In that range I give the beats a close
guess at 8 beats a second. The more inharmonicity there is the faster the
beat is. And the beat goes on............

There is even a more simple reasoning as to why these 4 additional hz would
make not much difference.
Most of the tunings show very small differences in thirds (following in half
steps). And sometimes not noticably. (sometimes even reverse given the
primate (ahead to) to fifths and fourths in the procedure of equal
tempering).
If so (and  the 4 additional hz are itsie witsie teenie weenie small
compared to a half step -slightly less than one eight-) then the difference
in beats of thirds are even smaller than the sometimes not noticably small
increases of the half steps.



John Meulendijks
Tilburg
the Netherlands

 ----- Original Message -----
From: Howard S. Rosen <hsrosen@gate.net>
To: Pianotech <pianotech@ptg.org>
Sent: Saturday, March 03, 2001 8:46 PM
Subject: A=444 Hz


> Hi all,
>
> A few times it was mentioned that A at 444 Hz would present brighter 3rds
> compared to those at A=440. With all other things being equal (same piano,
> tech, temperament etc.) what would be the difference of say F3-A3 major
3rd
> in both cases? You whiz techs with the electronic equipment should be able
> to come up with an answer to this. My gut feeling is.........*negligible*.
> Am I right or wrong?
>
> Howard S. Rosen, RPT
> 7262 Angel Falls Ct.
> Boynton Beach, Fl  33437
>
> hsrosen@gate.net
>
>
>