208edt: Difference between revisions
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== Intervals == | |||
{{Interval table}} | |||
{{ | == Harmonics == | ||
{{Harmonics in equal | |||
| steps = 208 | |||
| num = 3 | |||
| denom = 1 | |||
}} | |||
{{Harmonics in equal | |||
| steps = 208 | |||
| num = 3 | |||
| denom = 1 | |||
| start = 12 | |||
| collapsed = 1 | |||
}} |
Revision as of 10:29, 3 October 2024
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← 207edt | 208edt | 209edt → |
208 equal divisions of the tritave, perfect twelfth, or 3rd harmonic (abbreviated 208edt or 208ed3), is a nonoctave tuning system that divides the interval of 3/1 into 208 equal parts of about 9.14 ¢ each. Each step represents a frequency ratio of 31/208, or the 208th root of 3.
Intervals
Steps | Cents | Hekts | Approximate ratios |
---|---|---|---|
0 | 0 | 0 | 1/1 |
1 | 9.14 | 6.25 | |
2 | 18.29 | 12.5 | |
3 | 27.43 | 18.75 | 63/62 |
4 | 36.58 | 25 | 47/46, 49/48 |
5 | 45.72 | 31.25 | |
6 | 54.86 | 37.5 | |
7 | 64.01 | 43.75 | |
8 | 73.15 | 50 | |
9 | 82.3 | 56.25 | 43/41 |
10 | 91.44 | 62.5 | 39/37, 58/55 |
11 | 100.58 | 68.75 | |
12 | 109.73 | 75 | |
13 | 118.87 | 81.25 | |
14 | 128.02 | 87.5 | |
15 | 137.16 | 93.75 | |
16 | 146.3 | 100 | 62/57 |
17 | 155.45 | 106.25 | |
18 | 164.59 | 112.5 | 11/10 |
19 | 173.74 | 118.75 | 21/19 |
20 | 182.88 | 125 | 10/9 |
21 | 192.02 | 131.25 | 19/17 |
22 | 201.17 | 137.5 | |
23 | 210.31 | 143.75 | 35/31 |
24 | 219.46 | 150 | |
25 | 228.6 | 156.25 | |
26 | 237.74 | 162.5 | |
27 | 246.89 | 168.75 | 15/13 |
28 | 256.03 | 175 | 29/25, 51/44 |
29 | 265.18 | 181.25 | |
30 | 274.32 | 187.5 | 41/35 |
31 | 283.46 | 193.75 | |
32 | 292.61 | 200 | |
33 | 301.75 | 206.25 | |
34 | 310.9 | 212.5 | |
35 | 320.04 | 218.75 | |
36 | 329.18 | 225 | 52/43 |
37 | 338.33 | 231.25 | 45/37, 62/51 |
38 | 347.47 | 237.5 | 11/9 |
39 | 356.62 | 243.75 | 43/35, 70/57 |
40 | 365.76 | 250 | 21/17 |
41 | 374.9 | 256.25 | 41/33 |
42 | 384.05 | 262.5 | |
43 | 393.19 | 268.75 | 69/55 |
44 | 402.34 | 275 | 29/23 |
45 | 411.48 | 281.25 | 52/41 |
46 | 420.62 | 287.5 | 51/40 |
47 | 429.77 | 293.75 | 50/39 |
48 | 438.91 | 300 | 58/45 |
49 | 448.06 | 306.25 | 57/44 |
50 | 457.2 | 312.5 | 43/33 |
51 | 466.34 | 318.75 | |
52 | 475.49 | 325 | |
53 | 484.63 | 331.25 | 41/31 |
54 | 493.78 | 337.5 | |
55 | 502.92 | 343.75 | |
56 | 512.06 | 350 | 39/29 |
57 | 521.21 | 356.25 | 50/37 |
58 | 530.35 | 362.5 | |
59 | 539.5 | 368.75 | |
60 | 548.64 | 375 | 70/51 |
61 | 557.78 | 381.25 | 69/50 |
62 | 566.93 | 387.5 | 43/31, 68/49 |
63 | 576.07 | 393.75 | 60/43 |
64 | 585.22 | 400 | |
65 | 594.36 | 406.25 | 31/22, 55/39 |
66 | 603.5 | 412.5 | 17/12 |
67 | 612.65 | 418.75 | 47/33, 57/40 |
68 | 621.79 | 425 | 63/44 |
69 | 630.94 | 431.25 | |
70 | 640.08 | 437.5 | |
71 | 649.23 | 443.75 | |
72 | 658.37 | 450 | 60/41 |
73 | 667.51 | 456.25 | |
74 | 676.66 | 462.5 | |
75 | 685.8 | 468.75 | 52/35, 55/37 |
76 | 694.95 | 475 | |
77 | 704.09 | 481.25 | |
78 | 713.23 | 487.5 | |
79 | 722.38 | 493.75 | 41/27 |
80 | 731.52 | 500 | |
81 | 740.67 | 506.25 | 23/15 |
82 | 749.81 | 512.5 | 54/35 |
83 | 758.95 | 518.75 | 31/20 |
84 | 768.1 | 525 | |
85 | 777.24 | 531.25 | 47/30, 58/37 |
86 | 786.39 | 537.5 | 52/33, 63/40 |
87 | 795.53 | 543.75 | 19/12 |
88 | 804.67 | 550 | 35/22, 43/27 |
89 | 813.82 | 556.25 | |
90 | 822.96 | 562.5 | 37/23 |
91 | 832.11 | 568.75 | |
92 | 841.25 | 575 | |
93 | 850.39 | 581.25 | |
94 | 859.54 | 587.5 | |
95 | 868.68 | 593.75 | |
96 | 877.83 | 600 | |
97 | 886.97 | 606.25 | |
98 | 896.11 | 612.5 | 52/31 |
99 | 905.26 | 618.75 | |
100 | 914.4 | 625 | 39/23 |
101 | 923.55 | 631.25 | |
102 | 932.69 | 637.5 | 12/7 |
103 | 941.83 | 643.75 | 31/18 |
104 | 950.98 | 650 | |
105 | 960.12 | 656.25 | 47/27, 54/31 |
106 | 969.27 | 662.5 | 7/4 |
107 | 978.41 | 668.75 | |
108 | 987.55 | 675 | 23/13 |
109 | 996.7 | 681.25 | |
110 | 1005.84 | 687.5 | |
111 | 1014.99 | 693.75 | |
112 | 1024.13 | 700 | 47/26 |
113 | 1033.27 | 706.25 | |
114 | 1042.42 | 712.5 | |
115 | 1051.56 | 718.75 | |
116 | 1060.71 | 725 | |
117 | 1069.85 | 731.25 | |
118 | 1078.99 | 737.5 | 69/37 |
119 | 1088.14 | 743.75 | |
120 | 1097.28 | 750 | 66/35 |
121 | 1106.43 | 756.25 | 36/19 |
122 | 1115.57 | 762.5 | 40/21 |
123 | 1124.71 | 768.75 | |
124 | 1133.86 | 775 | 52/27 |
125 | 1143 | 781.25 | 60/31 |
126 | 1152.15 | 787.5 | 35/18 |
127 | 1161.29 | 793.75 | 45/23 |
128 | 1170.43 | 800 | |
129 | 1179.58 | 806.25 | |
130 | 1188.72 | 812.5 | |
131 | 1197.87 | 818.75 | |
132 | 1207.01 | 825 | |
133 | 1216.15 | 831.25 | |
134 | 1225.3 | 837.5 | |
135 | 1234.44 | 843.75 | |
136 | 1243.59 | 850 | 41/20 |
137 | 1252.73 | 856.25 | |
138 | 1261.87 | 862.5 | |
139 | 1271.02 | 868.75 | |
140 | 1280.16 | 875 | 44/21 |
141 | 1289.31 | 881.25 | 40/19 |
142 | 1298.45 | 887.5 | 36/17 |
143 | 1307.59 | 893.75 | 66/31 |
144 | 1316.74 | 900 | |
145 | 1325.88 | 906.25 | 43/20 |
146 | 1335.03 | 912.5 | |
147 | 1344.17 | 918.75 | 50/23 |
148 | 1353.31 | 925 | |
149 | 1362.46 | 931.25 | |
150 | 1371.6 | 937.5 | |
151 | 1380.75 | 943.75 | |
152 | 1389.89 | 950 | 29/13 |
153 | 1399.03 | 956.25 | |
154 | 1408.18 | 962.5 | |
155 | 1417.32 | 968.75 | |
156 | 1426.47 | 975 | |
157 | 1435.61 | 981.25 | |
158 | 1444.75 | 987.5 | |
159 | 1453.9 | 993.75 | 44/19 |
160 | 1463.04 | 1000 | |
161 | 1472.19 | 1006.25 | |
162 | 1481.33 | 1012.5 | 40/17 |
163 | 1490.47 | 1018.75 | |
164 | 1499.62 | 1025 | 69/29 |
165 | 1508.76 | 1031.25 | 55/23 |
166 | 1517.91 | 1037.5 | |
167 | 1527.05 | 1043.75 | |
168 | 1536.19 | 1050 | 17/7 |
169 | 1545.34 | 1056.25 | |
170 | 1554.48 | 1062.5 | 27/11 |
171 | 1563.63 | 1068.75 | 37/15 |
172 | 1572.77 | 1075 | |
173 | 1581.91 | 1081.25 | |
174 | 1591.06 | 1087.5 | |
175 | 1600.2 | 1093.75 | |
176 | 1609.35 | 1100 | |
177 | 1618.49 | 1106.25 | |
178 | 1627.63 | 1112.5 | |
179 | 1636.78 | 1118.75 | |
180 | 1645.92 | 1125 | 44/17 |
181 | 1655.07 | 1131.25 | 13/5 |
182 | 1664.21 | 1137.5 | |
183 | 1673.35 | 1143.75 | |
184 | 1682.5 | 1150 | |
185 | 1691.64 | 1156.25 | |
186 | 1700.79 | 1162.5 | |
187 | 1709.93 | 1168.75 | 51/19 |
188 | 1719.07 | 1175 | 27/10 |
189 | 1728.22 | 1181.25 | 19/7 |
190 | 1737.36 | 1187.5 | 30/11 |
191 | 1746.51 | 1193.75 | |
192 | 1755.65 | 1200 | |
193 | 1764.79 | 1206.25 | |
194 | 1773.94 | 1212.5 | |
195 | 1783.08 | 1218.75 | |
196 | 1792.23 | 1225 | |
197 | 1801.37 | 1231.25 | |
198 | 1810.51 | 1237.5 | 37/13 |
199 | 1819.66 | 1243.75 | |
200 | 1828.8 | 1250 | |
201 | 1837.95 | 1256.25 | |
202 | 1847.09 | 1262.5 | |
203 | 1856.23 | 1268.75 | |
204 | 1865.38 | 1275 | |
205 | 1874.52 | 1281.25 | 62/21 |
206 | 1883.67 | 1287.5 | |
207 | 1892.81 | 1293.75 | |
208 | 1901.96 | 1300 | 3/1 |
Harmonics
Harmonic | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Error | Absolute (¢) | -2.13 | +0.00 | -4.27 | +2.61 | -2.13 | -3.83 | +2.74 | +0.00 | +0.48 | +0.06 | -4.27 |
Relative (%) | -23.3 | +0.0 | -46.7 | +28.6 | -23.3 | -41.9 | +30.0 | +0.0 | +5.2 | +0.7 | -46.7 | |
Steps (reduced) |
131 (131) |
208 (0) |
262 (54) |
305 (97) |
339 (131) |
368 (160) |
394 (186) |
416 (0) |
436 (20) |
454 (38) |
470 (54) |
Harmonic | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Error | Absolute (¢) | +3.46 | +3.18 | +2.61 | +0.61 | -3.76 | -2.13 | -4.30 | -1.66 | -3.83 | -2.07 | +3.27 |
Relative (%) | +37.9 | +34.8 | +28.6 | +6.6 | -41.2 | -23.3 | -47.0 | -18.1 | -41.9 | -22.6 | +35.8 | |
Steps (reduced) |
486 (70) |
500 (84) |
513 (97) |
525 (109) |
536 (120) |
547 (131) |
557 (141) |
567 (151) |
576 (160) |
585 (169) |
594 (178) |