Free Monaural Beats Generator
Custom monaural beats for sleep, focus, calm and meditation — a strong, steady beat that works on speakers. Free, no signup, no headphones needed.
STANDBY — Alpha, 10 Hz beat
Shape the tone — carrier pitch, volume and reverb, with an optional slow pitch wobble.
Pick a goal, or dial in a raw brainwave band.
What the evidence says
For sleep, use delta-range monaural beats (a beat of roughly 1–4 Hz) at a low, gentle volume. Because the two tones are already mixed into one signal, monaural beats play on speakers — no headphones to sleep in — and the steady, smooth beat suits winding down. The sleep evidence is emerging rather than settled, so treat it as a relaxing wind-down ritual.
What the evidence says
For focus, alpha-range monaural beats (around 8–13 Hz) can help you settle into a calm, alert state — and because monaural beats work on speakers, you’re not tied to headphones at your desk. They produce a stronger EEG response than binaural beats (Schwarz & Taylor, 2005), though direct studies on focus and complex cognition are mixed, so use them as a settling ritual rather than a guaranteed boost.
What the evidence says
For anxiety, use alpha (8–13 Hz) or theta (4–8 Hz) monaural beats at a gentle volume, and never use beta — activating frequencies can make anxiety worse (Lane et al., 1998). Monaural beats let you do this on speakers, no headphones required. The strongest anxiety evidence in brainwave audio is binaural-specific, so we grade monaural for anxiety as Emerging and recommend pairing it with slow breathing.
What the evidence says
For meditation, theta-range monaural beats (around 4–8 Hz) offer a smooth, steady anchor for attention — and they work on speakers, so you can sit without headphones. Monaural beats drive a stronger EEG response than binaural beats (Schwarz & Taylor, 2005); even so, evidence that any brainwave audio reliably deepens meditation is emerging, so treat the beat as a scaffold for your practice.
What the evidence says
For studying, alpha-range monaural beats (around 8–13 Hz) can give you a smooth, steady backdrop for reading and review — and because they work on speakers, you’re not stuck in headphones for hours. Be realistic, though: there’s little direct evidence brainwave audio improves learning, so they’re best as a consistent study ritual that lowers the friction of starting.
What the evidence says
For ADHD, monaural beats are largely unproven — the better-supported sound tool is plain white noise. A 2024 meta-analysis found no controlled studies behind the viral “brown noise for ADHD” trend, while white noise has modest support. Monaural beats do have a real mechanistic edge (a smooth, steady beat that works on speakers and drives a stronger EEG response than binaural), so they’re a reasonable calm-focus experiment — use alpha (8–13 Hz), never beta, and treat sound as a complement to proper care, not a treatment.
That’s the frequency. Now hear these monaural beats under affirmations spoken in your own voice — your first full session is free.
Create your free session → DeepBlissWhat are monaural beats?
Monaural beats are two tones summed into one signal before they reach your ears, so the beat is physically present in the audio. That means they work on speakers — no headphones needed — and they produce a stronger EEG response than binaural beats (Schwarz & Taylor, 2005), because the brain doesn’t have to reconstruct the beat from two ears. The beat rate is tuned to a target brainwave band for sleep, focus, or calm.
The brainwave bands
| Band | Frequency | Mental state | Best for |
|---|---|---|---|
| Delta | 0.5–4 Hz | Deep, dreamless sleep | Sleep, restoration |
| Theta | 4–8 Hz | Drowsy, meditative, REM | Meditation, creativity |
| Alpha | 8–13 Hz | Relaxed but alert | Calm, anxiety relief, light focus |
| Beta | 13–30 Hz | Awake, engaged, thinking | Active concentration |
| Gamma | 30–100 Hz | Peak attention, binding | High-level processing |
Monaural beats vs binaural & isochronic tones
Monaural beats are one of three kinds of brainwave audio. Here's how they compare:
| Type | How the beat is made | Headphones | On speakers? | Evidence |
|---|---|---|---|---|
| Binaural | A different tone in each ear; the brain perceives the difference as a beat | Required | No | Largest evidence base (anxiety g≈0.45) |
| Monaural | Two tones mixed into one signal before they reach your ears | Optional | Yes | Stronger EEG response; less studied |
| Isochronic | A single tone pulsed on and off at the target rate | Optional | Yes | Strongest modulation; survives background noise |
Does it actually work? (the honest version)
Monaural beats have a real mechanistic edge — but the marketing still oversells them. Here's what the better research shows, including the limits:
- Schwarz & Taylor, 2005: Monaural beats produced a STRONGER EEG response than binaural beats (p < 0.001), because the beat is physically in the signal rather than reconstructed by the brain. This is the clearest mechanistic point in monaural beats’ favour.
- Klichowski et al., 2023 (N ≈ 1,000): In a large binaural-beats study, beats WORSENED performance on complex fluid-intelligence tasks versus silence. A reminder that a stronger EEG response doesn’t guarantee better cognition — use a beat to settle in, not to power through hard problems.
- Garcia-Argibay et al., 2019 (meta-analysis, 14 studies): The strongest anxiety evidence — a medium reduction (Hedges’ g ≈ 0.45) — comes from binaural beats specifically, not monaural. Monaural beats use the same calming bands, but direct trials are limited, so we grade those uses Emerging. (See binaural.info for the anxiety evidence.)
Be realistic: a stronger EEG response is a genuine mechanistic advantage, but direct clinical trials on monaural beats for specific goals are limited, and roughly 20–40% of people don’t respond to brainwave audio at all. The dependable benefits are practical — a smooth, steady beat that works on speakers — plus the calm of slow breathing. Use it as a relaxing ritual, not a guaranteed switch.
How to use monaural beats
- Play it on speakers or headphones. Monaural beats work either way — the beat is already in the audio, so no headphones are needed.
- Pick your goal. Choose Sleep, Focus, Anxiety, Meditation or Studying to load the right frequency, or pick a raw band.
- Press play and settle in. Start playback at a low, comfortable volume and relax your breathing.
- Give it 15–30 minutes. Effects build over time rather than switching on instantly. Stay consistent across sessions.
Myths worth ignoring
“Monaural beats are just weaker binaural beats.”
The opposite, mechanically: because the beat is mixed into one signal, monaural beats produce a STRONGER EEG response than binaural and work on speakers. Binaural’s advantage is a larger overall research base, not a stronger signal.
— Schwarz & Taylor, 2005“Beta-frequency beats calm you down.”
Beta is an alert, activating band. For anxiety it can make things worse, not better — reach for alpha or theta instead. We never recommend beta for calm or sleep.
— Lane et al., 1998“Layer brown noise under the beat for a deeper effect.”
Low-frequency noise masks beat entrainment, and the viral “brown noise for ADHD” claim has zero controlled studies behind it — the modest noise evidence is for white noise. If you want a noise layer, keep it light and high.
— Nigg et al., 2024Is it safe?
- Generally safe for healthy adults at comfortable volumes.
- If you have epilepsy or a seizure disorder, talk to your doctor before using brainwave audio.
- Never listen while driving or operating machinery — some frequencies are relaxing or drowsy-making.
- Keep the volume moderate to protect your hearing; louder is not more effective.
- There’s little research in children or during pregnancy — when unsure, keep sessions short and gentle, or skip it.
Explore by goal
Each page loads the right frequency and the honest evidence that goes with it:
Frequently asked questions
What are monaural beats?
Monaural beats are two tones of slightly different frequency mixed into a single signal before they reach your ears, so the beat is already in the audio. The beat frequency (e.g. 10 Hz) is matched to a target brainwave band, and because the beat is physical, they work on speakers.
Do monaural beats really work?
They produce a stronger EEG response than binaural beats (Schwarz & Taylor, 2005) and work on speakers — a real mechanistic edge. But direct clinical trials for specific goals are limited, so the honest grade for most uses is emerging, and around 20–40% of people don’t respond.
Do monaural beats work without headphones?
Yes. The two tones are combined into one signal before they reach your ears, so the beat is already there — monaural beats play fine on speakers. Headphones are optional.
Are monaural beats safe?
For healthy adults at comfortable volumes, generally yes. If you have epilepsy or a seizure disorder, consult a doctor first, and never use them while driving or operating machinery.
What frequency should I use?
Delta (1–4 Hz) for sleep, theta (4–8 Hz) for meditation, alpha (8–13 Hz) for calm and anxiety relief, beta (13–30 Hz) for active focus. Avoid beta when anxious — it can be activating.
Is this monaural beats generator free?
Yes — completely free, with no signup to use it. Everything runs in your browser; an optional email unlocks downloadable MP3s.
Is it spelled “monaural” or “monoaural” beats?
The correct spelling is monaural beats (mon-AURAL, from “one ear” or one combined signal) — “monoaural” is a very common misspelling of the same thing. Either way, it means two tones mixed into a single signal, so the beat is physically in the audio and plays on speakers without headphones.
Where can I find free monaural beats?
This generator makes monaural beats free in your browser — no signup and no app to install. Pick a goal or a raw band (delta, theta, alpha, beta or gamma), press play on speakers or headphones, and an optional email unlocks a downloadable MP3 for offline listening.
What is a monaural beats generator?
A monaural beats generator mixes two tones of slightly different frequency into a single signal, so a real, physical beat — tuned to a target brainwave band — is already in the audio before it reaches you. This one runs free in your browser with no signup, and because the beat is physical it plays fine on speakers.
Are monaural beats better than binaural beats?
On EEG measurements monaural beats produce the stronger response (Schwarz & Taylor 2005) and they work on speakers — but binaural beats have the larger evidence base (a 14-study meta-analysis found g≈0.45 for anxiety). A stronger measured signal isn’t proof of a bigger real-world benefit, so the honest answer is: monaural for practicality, binaural for research depth — try both and keep what works.
References
- Garcia-Argibay et al., 2019 — Meta-analysis of 14 studies — medium reduction in anxiety (Hedges’ g ≈ 0.45), plus memory and pain benefits. The strongest evidence in the field.
- Klichowski et al., 2023 — Large study (~1,000 participants) — binaural beats worsened performance on complex fluid-intelligence tasks versus silence.
- Aparecido-Kanzler et al., 2021 — Systematic review — ~82% of randomised trials found auditory beat stimulation beat the control condition, though quality varied.
- Ingendoh et al., 2023 — Pink and brown noise abolished binaural-beat entrainment on EEG — low-frequency noise masks the beat.
- Lane et al., 1998 — Beta-frequency beats associated with increased anxiety/tension — why we never recommend beta for calm.
- Schwarz & Taylor, 2005 — Monaural beats produced a stronger EEG response than binaural beats (p < 0.001).
- Nigg et al., 2024 — Meta-analysis — zero controlled studies of brown noise for ADHD; the (modest) noise evidence is for white noise.
About this tool
monaural.info exists because most monaural beats sites overpromise. We grade every claim by the strength of the actual research — and we tell you plainly when the evidence is weak, mixed, or absent. The generator is free, runs entirely in your browser, and always will be.
Last updated June 2026