Isochronic Tones online for free

Generate custom isochronic tones for focus, relaxation and sleep.

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Works with speakers
No headphones required
Adjustable pulse rate

Carrier Frequency (Hz)

Pulse Rate (Hz)

Session Length

Isochronic Tone Presets

Sleep (3 Hz • 15 min)

δ Delta
3 Hz
15 min
Carrier220 Hz

Meditation (7.5 Hz • 10 min)

θ Theta
7.5 Hz
10 min
Carrier220 Hz

Focus (14 Hz • 25 min)

β Beta
14 Hz
25 min
Carrier220 Hz

Flow (10 Hz • 30 min)

α Alpha
10 Hz
30 min
Carrier220 Hz

Alert (30 Hz • 5 min)

γ Gamma
30 Hz
5 min
Carrier220 Hz

Schumann (7.83 Hz • 20 min)

θ Theta
7.83 Hz
20 min
Carrier220 Hz
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Ambient sounds

Layer natural textures on top

FAQ

Isochronic Tones – Frequently Asked Questions

Quick answers to common questions.

Isochronic tones are single, evenly spaced pulses of sound used to stimulate the brain. Unlike binaural beats, they do not require headphones and are highly effective for brainwave entrainment.

Yes, Delta and Theta isochronic tones are often used to promote deep sleep and relaxation. Use them before bed to assist with sleep onset.

Use a comfortable, low-to-moderate volume. The tones should be audible but not overpowering. High volume does not increase effectiveness.

You don’t hear 2 Hz as a pitch. The carrier is audible; the beat is the on/off modulation. Keep pulse depth high enough and volume moderate so the pulsing is noticeable but not harsh.

Yes. Keep the ambient layer quiet so it doesn’t mask the pulses. If the pulse feels lost, reduce the background or raise pulse depth slightly.

Most sessions last between 10 and 30 minutes. Start with short durations and increase gradually. Avoid overuse to prevent mental fatigue.

No. Isochronic tones are designed to be effective without headphones. However, using them can improve clarity in noisy environments.

Isochronic tones are a single pulsed tone and work over speakers. Binaural beats use two slightly different tones, one per ear, and require headphones to create the perceived beat.

1–2 sessions per day is typical. Take breaks if you feel wired or fatigued. Consistency matters more than long sessions.

Isochronic Tones Explained

Isochronic tones are regular pulses of a single tone turned on and off at specific intervals. The rapid on/off pattern creates sharp, evenly spaced beats that can entrain brainwaves by syncing neural oscillations to the pulse rate. You only need a single audio channel, so stereo headphones aren’t required—though they can still help immersion.


Isochronic vs. Binaural Beats

Mechanism:• Isochronic: Pulse = tone on/off.
• Binaural: Two slightly different frequencies—one in each ear—create a perceived beat.

Equipment:• Isochronic: Can work through speakers or headphones.
• Binaural: Requires stereo headphones for proper interaural phase difference.

Effectiveness:• Isochronic: Often yields faster entrainment thanks to clear pulses.
• Binaural: Subtler; may take longer but can feel more immersive for some users.

Flexibility:• Isochronic: Pulse rate adjustable from ~1–40 Hz in fine increments.
• Binaural: Beat frequency limited by comfortable left/right carrier frequencies and headphone quality.

More tools on Binauro

Isochronic Tones Generator for Focus, Sleep, and Meditation

Use our powerful isochronic tones generator to create brainwave entrainment audio for relaxation, sleep, focus, and deep meditation.


What Are Isochronic Tones?

Isochronic tones are distinct, evenly spaced pulses of sound that help stimulate brainwave activity. They are used in audio brainwave entrainment to support mental states like concentration, relaxation, and REM sleep.

Brainwave Entrainment with Isochronic Tones

Brainwave entrainment with isochronic tones is a non-invasive way to influence brain activity. By listening to tones at specific frequencies, you can enter states of deep focus, calm awareness, or lucid dreaming.

Customize Your Isochronic Audio

Our isochronic tones generator lets you control frequency, tone duration, volume, waveform shape, and more. Create personalized audio sessions for meditation, study, or stress relief.

When to Use Isochronic Tones

Use isochronic tones during work, sleep, yoga, or mindfulness meditation. Sessions between 15–45 minutes can have noticeable effects on mental clarity, emotional balance, and energy levels.

No Headphones Required

Unlike binaural beats, isochronic tones don't require headphones. You can play them on speakers while studying, working, or relaxing — making them ideal for everyday use.


Try the Binauro Isochronic Tones Generator Today

Generate your own isochronic audio in seconds. 100% online. No downloads. Free to use. Perfect for focus, study, relaxation, deep sleep, creativity, and more.

Evidence & Sources — Isochronic Tones

Peer-reviewed & clinical (mixed results)

Curated papers on isochronic-tone stimulation and related auditory entrainment. Notes highlight EEG effects, study design, and where results are limited or protocol-dependent.


Neuroscience EEG: ITd (isochronic-like) vs gamma BB vs noise

Neuroscience (Elsevier) / PubMed, 2024

Within-subject EEG comparing an isochronic-derived protocol (ITd) to gamma binaural beats and white noise. Reports frequency-specific modulation during 4-min stimulation.

Alternate link
EEG
Protocol
Comparison

Randomized trial: alpha-range tones (BB, Isochronic, Combo)

Exploration of Neurotherapeutics (open access), 2023

21-day, single-blind RCT in healthy adults. Alpha-range isochronic tones increased regional alpha power; pattern differed by method and region.

RCT
Alpha
EEG

Pilot: music + isochronic beats during cycling

Frontiers in Human Neuroscience, 2021

Small crossover pilot in trained cyclists. Music augmented with isochronic beats showed no ergogenic benefit vs music alone across tasks.

Pilot
Exercise
Null/limited

Literature review: brain-wave modulation (BB vs Isochronic)

Salud Mental (SciELO), 2021

Survey of entrainment studies; notes far fewer isochronic trials than binaural. Summarizes parameters and reported outcomes.

Review
Methods

Meta-analysis: sensory entrainment & acute/chronic pain

Frontiers in Pain Research (PMC), 2022

Aggregates auditory/visual entrainment. Alpha favored for acute pain; theta for chronic. Not isochronic-only, but relevant for parameter choices.

Meta-analysis
Pain
Parameters
Note: Evidence for isochronic tones is smaller than for binaural beats. Effects can depend on frequency, carrier, masking, session length, and context. Use headphones for consistent results.