root wrote: > > >Ok, cyber tuner doesn't use f(n)=55*2^(1/12)^n, but measures inharmonicities. >But does it also register beats themselves, or use absolute frequencies? > >(I haven't tried rct, because it's what $800?) > >josefus. I am not familiar with your use of the term "absolute frequencies." However, to answer the question that I believe you are asking: The tuning calculator of RCT, called Chameleon, calculates a tuning by choosing a frequency at which to tune one partial of each note of the piano. That said, Chameleon collects enough data from the piano that is knows the the beat rates of some "selected" intervals, assuming that the human tuner actually executes the calculated tuning accurately. RCT "knows", for example, many of the beat rates between the A's of the piano, and, for another example, can directly tune the 3:2 fifths that straddle A4 and the 6:3 octaves that straddle A3. The human tuner can tweak the calculated tuning in the RCT interface by punching in desired beat rates between the A's. Kent Swafford
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