960/853
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| This page presents a novelty topic. It features ideas which are less likely to find practical applications in xenharmonic music. It may contain numbers that are impractically large, exceedingly complex or chosen arbitrarily. Novelty topics are often developed by a single person or a small group. As such, this page may also feature idiosyncratic terms, notations or conceptual frameworks. |
| Ratio | 960/853 |
| Subgroup monzo | 2.3.5.853 [6 1 1 -1⟩ |
| Size in cents | 204.5864¢ |
| Names | EAS Attention Tone, EAS major second |
| Color name | 853uy2 |
| FJS name | [math]\text{M2}^{5}_{853}[/math] |
| Special properties | reduced |
| Tenney height (log2 nd) | 19.6433 |
| Weil height (log2 max(n, d)) | 19.8138 |
| Wilson height (sopfr (nd)) | 873 |
| Harmonic entropy (Shannon, [math]\sqrt{n\cdot d}[/math]) |
~4.56857 bits |
| open this interval in xen-calc | |
960/853 is an interval extremely close to the Pythagorean major second 9/8, differing by the unnoticeable superparticular comma of 2560/2559.
Sine tones with frequencies of 960 Hz and 853 Hz, sounded together, comprise the "Attention Tone" used by the U.S Emergency Alert System over public broadcasting. Using these exact tones over broadcast media is illegal in the United States, in order to protect the integrity of the system.