Tools
Tone generator
Pure sine wave · precision to a tenth of a Hz
Hz
0 Hzstep: 1 Hz2000 Hz
At low volumes with very low frequencies (< 20 Hz) you may feel vibration rather than hear sound — normal with standard speakers.
Tone generator — pure low-frequency sound.
Generate a pure tone at any frequency, with precision to a tenth of a Hz. Use it to explore the 20–80 Hz range at the heart of vibroacoustic therapy. Headphones or a speaker able to reproduce low frequencies give the best result.
A free online frequency generator
This free tone generator works directly in your browser on computer and phone — no app to install. Pick a frequency, choose the volume and press start to hear a clean sine wave.
What you can use it for
- 20–80 Hz: the low frequencies used in vibroacoustic therapy.
- Testing speakers, subwoofers and headphones.
- Tuning and reference tones, such as 440 Hz.