| Prime factorization
|
22 × 3 × 52
|
| Step size
|
28¢
|
| Octave
|
43\300ed128 (1204¢)
|
| Twelfth
|
68\300ed128 (1904¢) (→17\75ed128)
|
| Consistency limit
|
6
|
| Distinct consistency limit
|
6
|
28-cent equal temperament (also known as 1ed28¢ or APS28¢) uses equal steps of 28 cents each. It is similar to 43edo, but has the octaves stretched by 4 cents and a discrepancy for the 7th harmonic.
It can also be thought of as 1ed187/184, since 187/184 is 27.999 cents.
Harmonics
Approximation of harmonics in 1ed28c
| Harmonic
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
| Error
|
Absolute (¢)
|
+4.0
|
+2.0
|
+8.0
|
+13.7
|
+6.0
|
-8.8
|
+12.0
|
+4.1
|
-10.3
|
-7.3
|
| Relative (%)
|
+14.3
|
+7.3
|
+28.6
|
+48.9
|
+21.6
|
-31.5
|
+42.9
|
+14.6
|
-36.8
|
-26.1
|
| Steps
|
43
|
68
|
86
|
100
|
111
|
120
|
129
|
136
|
142
|
148
|
