Audio Tone Tool
20 Hz Tone Generator
Generate a pure 20 Hz tone directly in your browser. No software or download required.
AUDIO FREQUENCY
20 Hz
Ready
WaveformSmooth and pure
sine20 Hz – 20 kHz
Hz
20 Hz1 kHz10 kHz20 kHz
Quick frequenciesλ ∝ 1 / f
Frequency20 Hz
×
Visual wavelength3.96k px
22.00× longer wavelength than 440 Hz
Start audio only when you press play. Keep your device volume low before testing.
About the 20 Hz tone
A 20 Hz tone is a single-frequency audio signal that can be useful for speaker, headphone and general audio testing.
Start the tone at a comfortable volume and adjust the frequency or volume controls as needed.
How to use this tone generator
- Connect your speakers or headphones.
- Start the 20 Hz tone.
- Begin with a low volume.
- Increase the volume gradually if necessary.
FAQ
20 Hz Tone FAQ
What is a 20 Hz tone?
A 20 Hz tone is an audio signal containing a single frequency of 20 Hz.
Can I use a 20 Hz tone to test speakers?
Yes. You can use it as a basic audio test, while keeping the playback volume at a comfortable level.
Can I use this tone with headphones?
Yes. Start with a low volume when testing headphones and increase it only when necessary.