Binaural Beats vs Isochronic Tones: Differences, Headphones and Which to Try

Binaural beats and isochronic tones are both “beat” sounds: a steady pulse at a chosen rate, such as 10 or 18 times a second. They get there in very different ways, and that difference decides when you can use them.

How binaural beats work

Play a 432 Hz tone in your left ear and a 442 Hz tone in your right, and you will perceive a third, slow wobble at the difference: 10 Hz. That beat doesn’t exist in the air. Your auditory system creates it from the two separate signals.

Because each ear needs its own tone, binaural beats only work with headphones. On speakers, the two tones mix before reaching your ears and the effect disappears.

How isochronic tones work

An isochronic tone is a single tone switched on and off at a regular rate, like a very fast, smooth metronome. Ten pulses a second is a 10 Hz isochronic tone. You hear the rhythm directly, so isochronic tones work on any speaker, including your phone’s.

The pulse is more obvious than a binaural beat. Some people find that helps them settle; others find it distracting.

Side by side

	Binaural beats	Isochronic tones
How the beat forms	In your brain, from two tones	In the sound itself
Headphones	Required	Not needed
How it feels	Subtle wobble	Clear pulse
Research	More studies, mixed results	Fewer studies

What does the research say?

The evidence is genuinely mixed:

• A 2019 meta-analysis of 22 studies found an overall medium positive effect of binaural beats on memory, attention, anxiety and pain perception, with results depending on the frequency and listening time.
• A 2022 set of experiments focused on sustained attention found no consistent benefit from 16 Hz beta beats.
• A 2024 EEG study found that auditory beats could change brain-wave power, without settling what that means for everyday focus.

So: interesting, worth trying, not a guarantee. Neither type is a treatment for ADHD, anxiety or sleep problems.

Which should you try?

• Have headphones and like subtle sound? Start with binaural beats.
• Listening on speakers, or sharing a room? Use isochronic tones.
• For focus work, people usually choose beta presets (13–30 Hz); for winding down, alpha or theta; for bedtime, delta.
• Layer a noise underneath. A beat over brown or pink noise is easier to keep on for a long session.

In Solbox

Solbox has 27 presets across delta, theta, alpha, beta and gamma, from Deep Sleep at 2 Hz to Peak Cognition at 40 Hz. Every preset plays as a binaural beat or an isochronic tone, and Solbox switches to isochronic automatically when no headphones are connected. Browse them on the binaural beats page.