Free · in your phone's browser · nothing uploaded
Double bass tuner
A free double bass tuner in your phone's browser: E A D G in orchestral tuning or F♯ B E A for solo strings, one string at a time, with a needle and the cents. Nothing uploaded.
Forty-one hertz is low for a phone. Mika listens to the overtones and still names the E.The microphone closes when you stop, when all is in tune, or after half a minute of quiet. Nothing is recorded.
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The strings in Hz
Orchestral
| String | Note | Hz |
|---|---|---|
| 4th | E1 | 41.20 |
| 3rd | A1 | 55.00 |
| 2nd | D2 | 73.42 |
| 1st | G2 | 98.00 |
Other tunings
| Tuning | Notes | Hz |
|---|---|---|
| Solo | F♯1 B1 E2 A2 | 46.2 · 61.7 · 82.4 · 110.0 |
At A4 = 440 Hz; the reference switch above moves them all.
How to tune
The double bass is tuned in fourths, E A D G, and sounds an octave below where its music is written. The low E sits at 41 Hz, under what a phone's microphone hears well, so the tuner reads it through its overtones; bow a long, even note, or pluck firmly and let it ring.
Soloists put on solo strings and tune every string a whole tone up, F♯ B E A; it's the second switch. Between strings, the old method still works: the harmonic a third of the way along one string matches the harmonic a quarter of the way along the next string down, and the beating stops when they agree.
Then play something
The notes you tuned can go into Brumm as a short melody over a beat. Hum a line on top and it becomes an instrument.
The microphone is read in the browser and nothing is kept. How the site counts visits.