Frequency To Midi Note
Calculator
Exact MIDI note number
69.993917
Results
- Exact MIDI note number
- 69.993917
- Nearest MIDI note number
- 70
- Cents deviation
- -0.608282
Music and audio results
| Exact MIDI note number | 69.993917 |
| Nearest MIDI note number | 70 |
| Cents deviation | -0.608282 |
formula-map diagram
- Exact MIDI note number
- 69.993917
- Nearest MIDI note number
- 70
- Cents deviation
- -0.608282
Musical and acoustic relationship
Formula
n = 69 + 12 × log₂(f ÷ A4)= 69.993917173555
Note
This result is a simplified model: it applies the displayed standard formula to the values you entered, assuming twelve-tone equal temperament, a speed of sound of 343 m/s in dry air at 20 °C, an ideal free field with no reflections or air absorption, purely resistive speaker loads and Sabine's diffuse-field assumption. Real rooms, instruments, codecs and amplifiers depart from these idealisations, so measure with proper instruments for critical work.