Online Tone Generator
Does the subwoofer rattle at 40 Hz, does a speaker buzz at certain notes, or do you want to know how high you can still hear? Set the frequency and press start. Begin at a low volume.
How it works: Online Tone Generator
- Choose a waveform, sine for most tests.
- Set the frequency with the slider or as a number.
- Start with a low volume and press start.
All features are available in the tool Signal Generator.
Frequently asked questions
Up to what frequency can people hear?
Young people up to about 18,000 to 20,000 Hz, and the limit drops noticeably with age. Many adults hear little above 15,000 Hz.
What is pink noise good for?
It contains all frequencies with equal energy per octave and sounds balanced to the ear. It is often used to calibrate speakers.
Similar tasks
How does this tool work?
The signal generator allows you to create precise acoustic signals and noise directly in your browser.
Select a waveform (e.g., sine for pure tones or noise for testing purposes) and set the desired frequency in Hertz and the volume. Press start to play the tone immediately, visualized live in an oscilloscope. Ideal for testing audio equipment or sound design.
Where are my data processed?
Only in your browser. Your data is not sent to any server.
The tool calculates and converts with JavaScript right on your device. Input and files are not sent to us or anyone else. You can check this yourself: load the page, disconnect from the internet, and the tool keeps working in the open tab.