Play, sing or hum into your microphone and see the exact frequency in hertz, the closest note and how many cents away it is.
Press Start tuning, then play or sing a note
Detected note
Concert pitch
The panel next to the gauge shows four numbers: the measured frequency, the target frequency of the closest note, the deviation in cents, and the clarity of the signal. A clear, steady tone scores above 90%.
The detector works from about 26 Hz to 4,300 Hz, which is from below a bass guitar’s low E to the top of a piccolo. To play a frequency instead of measuring one, use the tone generator.
It measures the exact frequency of any sound you play, sing or hum. Use it to check instruments, train your ear or do science experiments.
Press Start tuning and make a steady sound. Then read the frequency, the closest note, how many cents off you are and how clear the signal is.
It uses the McLeod pitch method, a type of autocorrelation. About 30 times a second, it finds how often the sound wave repeats, all inside your browser.
It shows how regularly the sound wave repeats. A pure, steady tone scores close to 100%. Noise, chords or breathy sounds score lower and may not be detected.
No. Like most tuners, it measures one note at a time. With a chord, it shows the strongest or lowest note, or nothing.