which ETD?

[Don]

Hi Ron,

Yes of course. I have been asking Dean to add another couple of data points
for before and after break for about 3 years now. 

At 02:49 AM 10/11/02 +0000, you wrote:
>Hi Don,
>
>Sorry if what I said made you think that RCT only samples a single partial.  
>No, no, no.....
>
>Let me try another way.  The 5, or 6 A's provide a partial 'ladder'.  The 
>machine uses the sampled partials, along with the custom and stretch 
>information to move all the A's around.  In fact, I used to quick tune the 
>A's before starting, just to make sure I liked the blend from end to end.  I 
>got pretty good at using the graph to assist, and I could usually 'hit' it 
>with the first try.
>
>Now, the machine makes some assumptions.... (big opportunity for mistakes in 
>life when we make assumptions!)  Based on the information gathered from 
>those 5, or 6 notes, it predicts how all the other notes fit into the 
>partial progression, creating the smooth curves graphs of a single partial 
>for each part of the scale.  So, when it tunes an Eb3 to match an Eb4, it 
>has no direct reference, only a very educated guess on where to place those 
>notes.  Anyone that has tuned a Baldwin Hamilton with a machine knows the 
>challenges that awkward scaling can present to a machine.  If you tune to 
>the 6:3, the 4:2 is going to be beating a few beats a second.  If you tune 
>to the 4:2, the 6:3 going to give you problems.  Only by balancing those 
>intervals can you make a bad situation "less bad".  The typical machines are 
>only following along to a calculated progression of one partial, that 
>switches throughout the scale.
>
>help any?
>
>Ron Koval
>
>
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Regards,
Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T. Tuner for the Center of
the Arts

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