chrisburnell / keys-to-frequencies.js
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| 1 | //// |
| 2 | /// Return a frequency based on piano key |
| 3 | /// @param {Number} key [49] |
| 4 | /// @return {Number} frequency |
| 5 | //// |
| 6 | const getFrequencyFromKey = (key = 49) => { |
| 7 | return 2 ** ((key - 49) / 12) * 440; |
| 8 | }; |
| 9 | |
| 10 | //// |
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