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You can combine all stored stretchings with the historical temperaments as you please. If you
select a temperament and a stretching at the same time, the Tuning-Set will add the
temperament cents to those of the stretching.
4 The USB Port (CTS-7-CE only)
4.1 Data transmission from and to a PC
All data which you have stored in the Tuning Set CTS-7-CE can be transmitted to a PC and
retrieved from it again, or transmitted to another device.
You can download (free of charge) the needed interface software for the PC from the internet
(
http://www.tuning-set.de
). There you will also find a detailed description of the interface software
and its use.
5 Basic Information
5.1 Equal temperament
The standard tuning of the Tuning Set is the most frequently used equal temperament. The fol-
lowing example shows exactly how it is conceived mathematically:
Target value: the concert pitch a' should be 440,00 Hertz
The frequency of the chromatic semitone steps are calculated accordingly:
b' = 440,00 Hz * 12 2 = 466,16 Hz
12 2 = 1,0594631
h' = 466,16 Hz * 12 2 = 493,88 Hz
etc.
Target value: the concert pitch a' should be 442,00 Hertz
The result would be:
b' = 442,00 Hz * 12 2 = 468,28 Hz
h' = 468,28 Hz * 12 2 = 496,13 Hz
etc.
5.2 The “cent” unit
The "cent" is a unit for frequency relations; a semitone step is divided geometrically into 100
parts. The following calculation demonstrates how the “cent” unit is mathematically defined:
The frequency 440.00 Hertz are to be raised by 1 cent:
440.00 Hz * 1200 2 = 440,26 Hz
Summary of Contents for TUNING SET CTS-7-C
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