Binaural Beats
Play slightly different frequencies into your left and right ear and you perceive a slow beat at the difference between them. Headphones are essential, and the scientific evidence for any effect is still unclear.
🔊 Sound is generated in the browser. Mic audio is never uploaded.
10Hz
Left 200Hz · right 210Hz
🎧 Headphones are essential. Through speakers the two tones mix in the air and no beat appears.
Beat frequency10Hz
Base frequency200Hz
Volume25%
The effect is still unclear
There is a claim that brainwaves follow the beat frequency, but the research is mixed and most of it points to a small effect at best. If it does help you focus or sleep, that may simply be the effect of listening to something quiet for a long time. Do not use it as a treatment.
What this tool does
- Adjustable base frequency and difference
- Delta, theta, alpha and beta presets
- Separate left and right channels
- Tells you headphones are required
Other sound tools
Start at a low volume — high frequencies and loud tones can damage your hearing.