Learn · Mechanism
What is a beat frequency?
Answer
The beat frequency is the absolute difference between the two ear tones: |fR − fL|. In binaural listening this difference is what people map to delta, theta, alpha, beta, or gamma design targets.
Explain
| Beat (approx.) | Common label | Typical listening intent |
|---|---|---|
| 0.5–4 Hz | Delta | Deep rest / sleep framing |
| 4–8 Hz | Theta | Meditation / drowsy border |
| 8–12 Hz | Alpha | Calm alertness |
| 13–30 Hz | Beta | Active thinking / work |
| 30+ Hz (often ~40) | Gamma | Peak / research curiosity |
Labels are educational shorthand. Your brain state depends on more than a consumer audio file.
Experience Interactive
Press PLAY to hear a true-stereo demo in your browser. Adjust controls to explore the concept on this page.
Move only the beat slider. Faster pulse ≈ higher band design target.
Explore
Continue
Map bands hands-on in the band comparison experiment or the main Console.
Scientific & safety notes. Binaural listening is a consumer audio experience. Distinctions used on this site: established evidence vs preliminary research vs hypothesis vs user experience. We do not claim that a frequency cures or treats medical conditions. Do not use deep-rest audio while driving or operating machinery. Keep volume comfortable.