David Barnert Posted March 1 Share Posted March 1 43 minutes ago, seanc said: I am really not familiar with dealing in cents. Notes can be described in terms of frequency or pitch. They have a logarithmic relationship to each other: Every doubling of frequency is an octave, every 12 semitones is an octave. A cent is 1/100th of an equal-tempered semitone. An octave has a frequency ratio of 2 to 1. A semitone is 1/12th of an octave, or a frequency ratio of the 12th root of 2 to 1. A cent is 1/1200th of an octave, or a frequency ratio of the 1200th root of 2 to 1, or approximately 1.0005777895 to 1. As far as how many cents humans can detect, see https://en.wikipedia.org/wiki/Cent_(music)#Human_perception 47 minutes ago, seanc said: If you are 5.6 or 8.4 cents.. Does that translate into Your X note is 5.6% or 8.4% off? Given the above, “percent off” has no real meaning unless it is clear whether you are talking about frequency or pitch. 49 minutes ago, seanc said: Also, is that a constant? would your G note always be 8.4 off? or does it become 4.2 down an octave and 16.8 up an octave? You’re confusing frequency and pitch again. Assuming the “8.4” is cents (a measure of pitch), it will remain constant in all octaves. The difference in absolute frequency changes by factors of 2 in different octaves, although the frequency ratios remain constant. Quote Link to comment Share on other sites More sharing options...
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