ONE SMALL TASK, DONE.
Tone Generator
Play a sine, square, triangle or sawtooth tone at any frequency or note, with a choice of A4 reference pitch.
Runs on your deviceHow to use
- Enter a frequency or a note such as A4.
- Choose the waveform and reference pitch.
- Press Play and adjust the volume.
Good to know
Enter a frequency from 20 Hz to 20 kHz or a note such as A4 or C#3. The A4 reference can be set to 415, 430, 432, 440, 442 or 443 Hz.
Start at a low volume. Very low and very high tones may be inaudible, or felt more than heard, depending on your speakers.
This tool runs in your browser. Files you choose, microphone audio and your input are not sent to our server, and no result is stored. Advertising uses external services. Social and coffee links open external websites.
Questions
Which frequency is a standard tuning note?
A4 at 440 Hz. Orchestras often use 442 or 443 Hz, and baroque ensembles 415 Hz.
Can I test hearing with this?
Only informally. Speakers and headphones vary across frequencies, so it is not a medical hearing test.
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