E1, 4th string
- Input
- E1
- Expected output
- 41.20 Hz (24.3 ms)
170 ms window: about 7 cycles.
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online bass tuner
Pick 4-string bass or 5-string bass, pluck the open string and hold the note for a second. The tool uses a 170 ms window, long enough to cover several cycles of the low E, and measures the period of the wave instead of depending on the loudest harmonic.
170 ms window: about 7 cycles.
170 ms window: about 5 cycles.
Two octaves below the A3 at 220 Hz.
Only the low string changes, a whole step down.
E2, same as the open 6th string of a guitar.
Click Turn on microphone, allow access and pick Guitar. Pluck the open 6th string (the thickest): the tuner shows the note and the cents. If the needle goes left the string is flat and you tighten the tuning peg; if it goes right, you loosen it. Stop when the panel turns green and move on to the next string. When you finish, go back to the first one, because string tension redistributes along the neck.
Yes. The B0 is 30.87 Hz, the 170 ms window covers about 5 cycles and, in this tuning, the analysis goes down to about 26 Hz. The reading is slower than on the middle strings, so play firmly and wait a second.
The tool uses the microphone the browser offers. If your computer has a line input or a recognized audio interface, select it under Settings, Microphone. Without an interface, keep the microphone near the amplifier speaker.
Pick 5-string bass and, under Tuning, High C. The strings become E1, A1, D2, G2 and C3, or 41.20, 55.00, 73.42, 98.00 and 130.81 Hz. The new top string is the only difference from a 4-string bass.
Turn on the microphone and pluck an open string.
Microphone sound is analyzed on your device, in real time. Nothing is recorded and nothing is sent to servers.