Getting Started

What You Need

• Polar H10 chest strap — provides heart rate and R-R interval data
• Muse S (Gen 2) headband — provides EEG, PPG, and fNIRS data
• Woojer Strap 3 (optional but recommended) — a sternum-worn haptic transducer that delivers low-frequency tactile resonance synchronized with audio. Connects via a powered 3.5mm splitter alongside headphones so both play from the same jack without latency. The Woojer completes the closed loop — your ears hear the coherence tones, your body feels them.
• Chrome browser with Web Bluetooth support (Android, Windows, macOS, or ChromeOS)

You can use either sensor individually — both are not required. However, the coherence measurement is most complete with both connected.

Connecting Your Sensors

1 Polar H10: Moisten the electrode pads on the chest strap and put it on. Tap Connect H10 in the header, then select your H10 from the Bluetooth dialog.

2 Muse S: Place the headband on your forehead, ensuring the sensors sit flat against your skin. Tap Connect Muse and select your Muse from the Bluetooth dialog.

3 Watch the status bar — it shows connection state and live data flow counts for each stream (ECG, RR, EEG, PPG, fNIRS, IMU). Green numbers mean data is flowing.

Starting a Session

Once at least one sensor is connected, the Start Session button becomes active. Tapping it begins:

• Session recording (all sensor data is captured locally on your device)
• The policy engine (automatically selects entrainment frequencies)
• Audio and haptic delivery guided by your live coherence state
• A screen wake lock (prevents your device from sleeping during the session)

Audio & Haptic Delivery

The Aetheria Coherence Lab delivers each prescribed frequency as a binaural pair — one carrier to the left ear, a slightly different carrier to the right ear. Your brain perceives the frequency difference as a subtle pulsing tone (the "beat frequency"). When you also run a Woojer through a powered 3.5mm splitter, the Woojer receives the summed stereo signal and delivers the same frequencies as tactile resonance against your sternum.

This means each session engages three channels of the same prescription simultaneously: the ears (binaural carriers), the body (haptic resonance), and the nervous system (coherence policy responding to your live biosignals). No channel leads or lags — the powered splitter ensures they're all in sync.

Recommended setup:

• 1 Plug the powered splitter into your phone or computer's 3.5mm jack
• 2 Plug your headphones into one output of the splitter
• 3 Plug the Woojer into the other output
• 4 Set both output volumes to comfortable levels before starting a session

Using just headphones without the Woojer is fine — the coherence system still functions fully. The Woojer adds an embodied layer that many users find deepens the experience, especially during the closing.

The Closing Heartbeat

Every Aetheria session ends with a ritual closing signature called the "biofield hug."

When the adaptive policy determines the session has reached its natural completion — either through sustained coherence at a peak frequency, or through three consecutive pivot events that suggest diminishing returns — the system enters a closing state. It holds your peak-coherence prescription for at least 45 seconds, then transitions to a held HEART-regime carrier (typically 1206 Hz · Gateway Integration).

The final three seconds of every session deliver three heartbeats through the Woojer: a low-frequency LUB-dub pattern that slows and softens across the three cycles. This is the system's way of closing the loop in the body's own language — ending not with silence but with the pulse of life itself, gently fading.

If you're wearing the Woojer, you'll feel this directly on your sternum. If you're only wearing headphones, you'll hear it as a soft rhythmic bass. Either way, let it complete. Don't stop the session during the heartbeat hug — it's the dopamine release window that helps the nervous system consolidate the experience.

After Your Session

When you stop a session (or it closes gracefully after the heartbeat hug), a completion screen appears with three options:

• Download Full Session — saves the complete session JSON with all raw biosignals to your device. This is your primary data file.
• Export for Tagger — saves a smaller, filtered version containing only your coherence metrics, state transitions, and prescriptions — no raw sensor data. This file is designed for upload to the Session Tagger.
• Start New Session — dismisses the completion screen so you can begin again.

What is the Session Tagger? The Aetheria Session Tagger is a companion app where you add subjective context to your sessions — how you felt, what you noticed, what shifted. The Coherence Lab captures what your body did; the Tagger captures what you experienced. Together they form the complete picture.

You can export for the Tagger at any time from the completion screen. Your data stays on your device unless you explicitly choose to upload it.

Reading the Display

Left panel — Signals: Raw waveforms from your sensors. R-R intervals show heart rhythm variability, EEG shows brainwave activity from AF7/AF8 channels, PPG shows blood volume pulse, and fNIRS shows oxygenated and deoxygenated hemoglobin.

Right panel — Biofield Coherence: The three concentric arcs represent coherence in each regime:

• HEAD (outer, blue) — EEG-derived coherence
• HEART (middle, green) — HRV-derived coherence
• GUT (inner, orange) — PPG/fNIRS-derived coherence

The TCS (Total Coherence Score) in the center is the combined measure across all three regimes. Below it, BCS (Biofield Coherence Score), PLV (Phase Locking Value), and Lead show cross-regime synchronization metrics.

Frequency Controls

The frequency selector in the header lets you manually test individual entrainment tones. During an active session, the policy engine selects frequencies automatically — it advances through the regime cascade (GUT → HEART → HEAD) based on your live coherence readings.

Tips for Best Results

• Sit comfortably in a quiet environment
• Breathe naturally — don't force patterns
• Minimize head and jaw movement for clean EEG signals
• The EEG quality metric shows electrode contact — adjust the headband if quality is low
• Sessions of 10–20 minutes give the coherence algorithms time to calibrate and adapt
• Feel as much as you listen — if you're using the Woojer, the body's tactile response is as valid a signal as anything on the dashboard
• All data stays on your device — nothing is transmitted externally

Session Complete

Your session data has been recorded. Choose what to do next.

Links & Resources

The Aetheria ecosystem