40Hz Spatial Audio

GLYMPHA

Not a comfortable sound.
Still worth trying.

Experience 40Hz stimulation — studied in leading research labs — through Spatial Audio.
Its discomfort is exactly what makes it a clear, distinct acoustic stimulus.

Download on the App Store How to Use

What is 40Hz

The 40Hz Frequency Under Research

40Hz is the frequency of gamma waves — neural oscillations that occur when the brain is active.
Research institutions worldwide are investigating the relationship between this frequency and brain activity.

Sound pulses that vibrate 40 times per second

Changes in brain activity observed in animal studies

Effects in humans are still under active research

Background sounds and Spatial Audio help reduce harshness

Features

Key Features of GLYMPHA

01 — WAVEFORM

40Hz Pulse Generation

Generates 1ms short pulses at a 1,000Hz carrier frequency with 25ms intervals to produce a 40Hz rhythm. Choose from sine, square, or triangle waveforms.

Sine Wave Square Wave Triangle Wave

02 — SPATIAL

Spatial Audio — 3D Experience

Full 3D audio powered by Apple's PHASE framework. With head tracking–enabled AirPods Pro or AirPods Max, it feels as though the sound source is anchored in real space around you.

Rotation Mode Fixed Position Mode Head Tracking

03 — FLUCTUATION

Volume Fluctuation

Gently varies the volume in sync with a slow breathing rhythm (approx. 6 breaths/min) to reduce monotony. Volume rises over a 4-second inhale and gradually falls over a 6-second exhale.

Breathing Rhythm Depth Adjustment

04 — BACKGROUND

Background Sound

Choose from pink noise (ideal for focused work) or ocean waves (great for relaxation) to gently wrap around the 40Hz pulse and soften its harshness.

Pink Noise Ocean Waves

05 — PRESET

Preset Management

Save, overwrite, and manage all your parameter settings as presets. Synced via iCloud across your iPhone and iPad seamlessly. No limit on the number of presets.

iCloud Sync Overwrite Save

06 — TIMER

Sleep Timer

Set an auto-stop timer from 1 to 60 minutes. Perfect for bedtime wind-down, meditation, or the Pomodoro Technique.

Auto-Stop Fade Out

Use Cases

When People Use It

Results vary between individuals — the same experience is not guaranteed for everyone.

During Focused Work

Programming, design, writing, studying. Great for building a productive remote-work environment too. Combined with pink noise, it acts as an ambient sound layer.

※ Effects on productivity are still under research

For Relaxation

Short breaks between tasks, winding down before sleep, background audio for meditation or yoga. Works especially well with ocean waves and volume fluctuation.

※ Relaxation effects vary by individual

A New Bedtime Ritual

Set a 15–30 minute timer before sleep. Lie in bed with the lights off and let the sound gently rotate through space as you drift naturally into sleep.

※ Sleep benefits are not guaranteed

Mindfulness Practice

The volume fluctuation feature naturally supports deep breathing practice. Use the timer to structure your sessions intentionally.

※ Scientific effects on meditation are under research

I use it while studying for finals. I used to get distracted by noise in the library, but this works perfectly as ambient sound. The 25-minute timer also helps me do Pomodoro sessions!

College student, A (age 22)

Studying / Exam prep

I struggled to focus at home while working remotely. Since I started using GLYMPHA, my workspace feels more structured. The rotating sound is refreshing — I've saved my go-to settings as "Work Mode."

Office worker, B (age 35)

Remote work focus

I use it during Savasana at the end of my yoga classes. Students often say "that was a different kind of sound experience." The immersion from Spatial Audio is really unique.

Yoga instructor, C (age 29)

Yoga / Relaxation

I write a lot in cafés, but just noise cancelling felt too quiet. The pink noise mode is just right — I use it almost like background music.

Freelance writer, D (age 41)

Writing / Creative work

I got it to try something new. Listening to the rotating sound while thinking puts me in a different headspace. I'm not sure about the effects, but it's a genuinely interesting experience.

Designer, E (age 27)

Design / Creative work

It's part of my bedtime routine now. I set a 30-minute timer and listen from bed. Hearing the sound slowly rotate helps me relax. I love pairing it with the ocean waves.

Homemaker, F (age 38)

Bedtime routine

Ready to explore 40Hz for yourself?
Start today.

We'll be honest — it's not for everyone.
But if you're curious about research-backed audio stimulation, it might be worth a try.