A beginner's interactive guide
Binaural Beats 101
Understand what binaural beats are, hear how two carrier tones create the perceived beat, and try an alpha relaxation session.
On this page
Two tones, one perceived rhythm
A binaural beat begins with two steady tones. One plays in your left ear and a slightly different tone plays in your right. When you listen through stereo headphones, you may hear a slow pulse or wavering rhythm between them.
That rhythm is the binaural beat. It is not a third tone added to the recording. It is the difference your auditory system perceives while processing the two signals together.
For example, Binaural Studio can send a 200 Hz tone to the left ear and a 210 Hz tone to the right. The difference is 10 Hz, so the listener may perceive a 10 Hz rhythmic beat.
What is happening in your headphones
The audible pitch sent to either ear is called the carrier frequencyThe audible pitch sent to one ear. The difference between the two carrier frequencies creates the beat frequency.. The beat frequencyThe difference between the tones sent to the left and right ears. This is the rate of the rhythm you may perceive. is the mathematical difference between the two carriers.
Stereo separation matters. Each ear needs to receive its own carrier tone. If both tones are mixed together before they reach your ears, you may hear a physical or monaural beating effect instead, which is a different listening condition.
Changing the carrier frequencies changes how high or low the audio sounds. Changing the difference between them changes how quickly the perceived beat pulses. Two recordings can both use a 10 Hz binaural beat and still sound noticeably different.
What is happening in your brain
The auditory pathways receive two closely related signals and compare their timing and phase. That processing can produce the perception of a beat that is not present as a separate tone in either channel. The basic auditory effect has been documented for decades. (Oster, 1973)
Researchers have also tested whether rhythmic stimulation can influence measurable brain activity, attention, relaxation, and other outcomes. This idea is often called entrainmentThe idea that rhythmic stimulation may encourage neural activity to align with an external rhythm.. Some studies have reported neural or behavioral changes under specific conditions, while others have not found the same response. (Ingendoh, Posny, and Heine, 2023)
Hearing the beat and changing the brain in a useful way are two separate questions. The beat is a real listening effect. How useful it feels can vary from person to person.
Interactive lesson
Hear how a binaural beat is built
Start with each carrier tone by itself, then move the control to the center. The middle position sends a different tone to each ear so you can listen for the rhythmic difference.
Changes the pitch, not the selected beat rate.
Keep the tone low and comfortable.
Listening note
Use a low, comfortable volume. Stop if the tones feel sharp, tiring, painful, dizzying, or otherwise uncomfortable. Do not use the demonstration while driving or when you need to hear your surroundings.
What the frequency labels mean
Binaural beat tracks are often labeled delta, theta, alpha, beta, or gamma. Each name describes a brainwave bandA named range of EEG frequencies, such as alpha or theta, used to describe patterns in measured brain activity., or a broad frequency range used when discussing patterns measured with EEGElectroencephalography, a method that records patterns of electrical activity from the scalp..
The ranges do not act like switches. A brain can show activity across several bands at the same time, and the boundaries vary somewhat across references. The table is best used as a quick map of common associations and starting points.
| Band | Approximate range | Often associated with | Common listening use |
|---|---|---|---|
| Delta | 0.5 to 4 Hz | Slow-wave sleep | Sleep preparation |
| Theta | 4 to 8 Hz | Drowsiness, memory processes, and some meditative states | Meditation or winding down |
| Alpha | 8 to 13 Hz | Relaxed wakefulness, often stronger with eyes closed | Relaxation or calm attention |
| Beta | 13 to 30 Hz | Alertness and active mental processing | Focused work or studying |
| Gamma | Above 30 Hz | Higher-frequency processing across several cognitive functions | Experimental attention sessions |
Choosing a beat in one of these ranges does not guarantee a particular brain state or result. The frequency guide explores each range in more detail.
A simple starting point
Alpha relaxation session
Find a comfortable place where you will not be disturbed, put on your headphones, and let your breathing settle as you listen.
7:00 remaining
10 Hz binaural beat · Brown noise · 7 minutes
Keep the volume comfortable and stop if the sound causes pain, dizziness, marked discomfort, or worsens an existing symptom. Do not listen while driving or when you need to hear your surroundings. The World Health Organization's safe-listening guidance explains the broader hearing risks that apply to headphone audio.
Choose what to explore next
- See what the research has found if you want to examine the evidence and its limitations.
- Explore the frequency ranges if you want to understand delta, theta, alpha, beta, and gamma more closely.
- Start from a listening goal if you are interested in focus, relaxation, meditation, or sleep preparation.
- Build a custom session in the Studio when you are ready for the full set of controls.
- Read the complete overview of binaural beats for a deeper explanation of the mechanism, research, safety, and related audio methods.
Sources
Last reviewed: July 2026.
- Oster, G. (1973). Auditory Beats in the Brain. Scientific American, 229(4), 94–102.
- Ingendoh, R. M., Posny, E. S., & Heine, A. (2023). Binaural beats to entrain the brain? A systematic review of the effects of binaural beat stimulation on brain oscillatory activity. PLOS ONE, 18(5), e0286023.
- Melnichuk, A., Cooper, R. K., Jr., & Hawk, L. W., Jr. (2025). A parametric investigation of binaural beats for brain entrainment and enhancing sustained attention. Scientific Reports, 15, 4308.
- Sheng, S., Nalleballe, K., & Yadala, S. (2024). EEG Benign Variants. StatPearls, NCBI Bookshelf.
- World Health Organization. (2026). Deafness and hearing loss: Safe listening.