Edϕ: Difference between revisions
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The octave-reduced 13th harmonic, 13/8 (≈840.5276618¢), is closely approximated by 7 steps of 10ed2 (840¢). | The octave-reduced 13th harmonic, 13/8 (≈840.5276618¢), is closely approximated by 7 steps of 10ed2 (840¢). | ||
13/8 (1.625) is also close to acoustic phi (≈1.618033989). | 13/8 (1.625) is also close to acoustic phi (≈1.618033989), because 8 and 13 are sequential [[wikipedia:Fibonacci_number|Fibonacci numbers]]. | ||
So, if we divide acoustic phi into 7 steps, then 10 of those steps will bring us quite close to an octave. | So, if we divide acoustic phi into 7 steps, then 10 of those steps will bring us quite close to an octave. | ||