146.83 Hz is the open fourth string of a guitar in standard tuning, a perfect fourth above the A string. Drop D tuning takes the sixth string down to the same note an octave lower.
Which note 146.83 Hz is at other reference pitches
“In tune” depends on what A4 is tuned to, so the same frequency is a slightly different distance from the nearest note in each tuning.
| Reference | Nearest note | That note | 146.83 Hz is |
|---|---|---|---|
| A4 = 440 Hz · Standard (ISO 16) | D3 | 146.83 Hz | exactly on it |
| A4 = 432 Hz · “Verdi” pitch | D3 | 144.16 Hz | +31.7¢ |
| A4 = 442 Hz · Orchestral | D3 | 147.50 Hz | −7.9¢ |
| A4 = 415 Hz · Baroque pitch | E♭3 | 146.72 Hz | +1.2¢ |
Octaves of 146.83 Hz
Doubling a frequency raises it an octave and halving lowers it one, so these all have the same note name.
Harmonics of 146.83 Hz
A real instrument playing 146.83 Hz also sounds whole-number multiples of it. The first eight, and the notes they fall nearest:
| Harmonic | Frequency | Nearest note | Off by |
|---|---|---|---|
| 1 | 146.83 Hz | D3 | 0¢ |
| 2 | 293.66 Hz | D4 | 0¢ |
| 3 | 440.49 Hz | A4 | +1.9¢ |
| 4 | 587.32 Hz | D5 | 0¢ |
| 5 | 734.15 Hz | F♯5 | −13.7¢ |
| 6 | 880.98 Hz | A5 | +1.9¢ |
| 7 | 1027.8 Hz | C6 | −31.2¢ |
| 8 | 1174.6 Hz | D6 | 0¢ |
Period and wavelength
One cycle of 146.83 Hz lasts 6.811 milliseconds; in air at 20 °C, where sound travels at about 343 metres a second, one wavelength is 2.34 metres.