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A one-third octave is a logarithmic unit of frequency ratio equal to either one third of an octave (1200/3 = 400 cents: major third) or one tenth of a decade (3986.31/10 = 398.631 cents: M3 Playⓘ). An alternative (unambiguous) term for one tenth of a decade is a decidecade.
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octave one 10 one-third decade tenth base cents frequency ratio decidecade unit equal third 400 398 631 ieee play iso
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| One-third octave | is a | logarithmic unit of frequency ratio equal to either one third of an octave | 0.90 | text |
| One-third octave | related to Base 10 | IEC | 0.60 | section |
| One-third octave | related to Base 10 | ANSI S1 | 0.60 | section |
| One-third octave | related to Base 10 | This | 0.60 | section |
| One-third octave | related to Base 10 | ISO | 0.60 | section |
| One-third octave | related to Base 10 | One | 0.60 | section |
| One-third octave | related to Base 2 | ISO | 0.60 | section |
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