Altering FAC Settings, 4

Larry Gardner larryg@csufresno.edu
Sat, 18 Jan 1997 19:45:02 -0800


Fred, thanks for your articles.  I've using some of your techniques and
been very satisified with the results.

I have 2 SATs (does that mean I'm addicted?).  My first (S/N 378) had
FAC installed about a year after it became available.  It's F number
minimum is 2.0  When I do 8.0, 8.0, & 8.0 on SAT 378, A0 is
-11.4 cents and C8 is 42.8 cents. On SAT no. 1613, with the same FAC
numbers, A0 is -14.8 cents and C8 is 43.8.  My point is that not all
SATs, or should I say, FAC programs are the same.

Fred Sturm writes:
> A few more thoughts and observations:
>
> First, I want to point out that the FAC program limits the numbers that can
> be entered. The limits are:
> For F, 0.1 - 20.0 cents.
> For A, 2.0 - 16.0 cents.
> For C, 2.0 - 12.0 cents.
>


>
> Harpsichords tend to have measured "A numbers" that are less than 2.0, often
> less than 1.0. The FAC program will produce a stretch wider than you might
> expect or want for a harpsichord. I have found it better to record aural
> tunings of the harpsichords I tune on a regular basis, rather than use an FAC
> created tuning as a template to work from.
>

I've been wondering, how about the old F4 Stretch tuning, at least to
get started on with the harpsichord.  I don't tune that many
harpsichords, but it seems that with my newer SAT that I can enter a 0.0
F4 stretch number, and the changes from note to note only change at the
rate of about one tenth of a cent per half step.  Just a thought.

Larry Gardner, RPT
Fresno CA




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