Frequency ratio: Difference between revisions
"the rule doesn't apply" -- it kinda does |
Make it clear that "ratio" doesn't imply rationality |
||
| Line 8: | Line 8: | ||
A '''frequency ratio''' (often shortened to '''ratio''') is the relationship between the frequencies of the [[pitch]]es of two or more notes. For example, a piano string vibrating at 110 Hz (110 times per second) and a piano string vibrating at 220 Hz are in a 2:1 ratio (since 220/110 reduces to 2/1). | A '''frequency ratio''' (often shortened to '''ratio''') is the relationship between the frequencies of the [[pitch]]es of two or more notes. For example, a piano string vibrating at 110 Hz (110 times per second) and a piano string vibrating at 220 Hz are in a 2:1 ratio (since 220/110 reduces to 2/1). | ||
[[ | All [[interval]]s can be expressed as ratios, and they can be rational or irrational. Although mostly written in the form <code>larger/smaller</code> throughout this wiki, they may be written in several ways: | ||
* 2/1, 2:1, 1/2, 1:2 ([[octave]]) | * 2/1, 2:1, 1/2, 1:2 ([[octave]]) | ||