Binaural Beat Studio
Layer a precise binaural beat with synthesized noise and looping nature ambience, mix it live, then export the whole session as a custom MP3 track. Free, instant, and it all renders in your browser.
Export your mix as an MP3
How to use the Binaural Beat Studio
- Put on stereo headphones or earbuds so the binaural beat lands correctly (noise and nature layers work on any speakers).
- Pick a beat preset (Delta, Theta, Alpha, Beta or Gamma) or drag the carrier and beat sliders to dial in your own.
- Add noise layers — White, Grey or Black — and toggle in nature ambience like rain, ocean or campfire, each with its own volume.
- Balance everything with the per-layer sliders and the master volume, then click "Play mix" to hear it all together.
- When you love the blend, choose a track length and click "Render & download MP3" to export it as an audio file.
- Optionally set a 15, 30 or 60 minute sleep timer so live playback stops automatically.
Why use ZillaKit's Binaural Beat Studio?
A binaural beat is created when two slightly different tones are played separately into each ear — the left ear hears one steady frequency, the right ear hears a second frequency a few hertz apart, and the brain perceives a third, pulsing "beat" at the difference between the two. This studio builds those tones live with the Web Audio API, one oscillator panned fully left and one panned fully right, then lets you stack extra layers on top. Three noise colours are synthesized in real time with no files to download: White noise (full spectrum), Grey noise (a gentler, balanced pink noise) and Black noise (a deep, rumbling brown noise). On top of that you can layer looping nature ambience — rain, ocean waves, a crackling campfire, night crickets and more — each fading in and out with its own volume slider so you can find the exact texture that settles you. Everything mixes together live through a master volume, and when you are happy you can render the whole arrangement to a shareable MP3 in lengths from one minute up to four hours. Longer tracks are rendered in sequential chunks and encoded progressively, so even a multi-hour export never has to hold the entire song in memory at once. There is no signup and no upload of your listening — the beat and noise are generated on your device, and the optional nature recordings are public-domain files loaded only when you switch a layer on.
FAQ
Do I really need headphones?
For the binaural beat, yes — it relies on each ear receiving a different frequency at the same time, and through speakers both ears hear both tones so the beat disappears. The noise and nature layers, however, sound fine on any speakers.
What is the difference between the carrier and beat frequency?
The carrier frequency is the base tone pitch (100-500 Hz) that both ears hear. The beat frequency is the small difference between the left and right tones, which is what your brain perceives as a rhythmic pulse.
What are White, Grey and Black noise?
They are noise "colours" describing how energy is spread across frequencies. White noise (technically white) is full-spectrum and bright, like radio static. Grey noise here is a softer, balanced pink noise that many people find gentler. Black noise is a deep, rumbling brown noise weighted toward the low end. All three are synthesized live in your browser — there are no files to download.
What layers can I combine?
Any of them, all at once. You can run the binaural beat, one or more noise colours, several nature ambiences and (on Premium) your own uploaded audio simultaneously, each with an independent volume, balanced by a single master volume. The same mix is what gets exported when you download.
Can I use the downloaded tracks commercially?
Free exports are licensed for personal use only. A Premium subscription grants a commercial licence, so you may sell your rendered tracks and use them in monetised YouTube videos and other commercial work. The bundled nature recordings are CC0 / public domain, so no attribution is required either way.
How big are the exported files?
Exports are 128 kbps MP3s, which work out to roughly 1 MB per minute — so about 10 MB for a 10-minute track, 60 MB for an hour, and around 230 MB for the maximum 240-minute track. Longer renders also take longer to encode, so for most uses we suggest keeping tracks to 60 minutes or less.
Is this a medical or therapeutic treatment?
No. This tool is provided purely for relaxation, focus, reflection and entertainment. It makes no medical, healing or therapeutic claims and is not a substitute for professional advice or care.
Is any audio uploaded or recorded?
No. The beats and noise are synthesized live in your browser, and rendering happens entirely on your device. Nature files are public-domain audio fetched only when you enable a layer, and any audio you upload as a Premium overlay stays in your browser too.