Biometric sound synthesis

Your body
becomes
sound.

Praenox reads your HRV, sleep architecture, and stress — then generates a therapeutic soundscape engineered for your exact physiological state. Not generic. Not approximate. Yours.

+22%
Deep sleep improvement
+26%
REM sleep improvement
+111%
Sleep duration increase
56.8
Avg HRV · stress 22.8
Real data · Feb 25 – Jun 16, 2026

The numbers
don't lie.

112 nights tracked. 4+ years of Zepp baseline versus what happened after Praenox started. No cherry-picking.

Live — updated daily
Deep sleep
+22%
15.4% → 18.8%
REM sleep
+26%
22.0% → 27.6%
Sleep duration
+111%
3.3h → 6.95h
Avg HRV
56.8 ms
Avg stress: 22.8
Free vs Pro

Pick your
level.

Free reacts to today. Pro learns your patterns, detects chronic deficits, and acts before the decline starts.

Free
Praenox
Free · Windows · forever
Download — Windows
Coming soon
Sound engine
Full biometric fingerprint synthesis — HRV, HR, deep sleep, REM, and stress each drive a different audio dimension
6 protocols — Parasympathetic Restore, Delta Induction, Cortisol Reset, REM Restore, Cardiac Calm, Maintenance
Binaural beats, isochronic pulses, breath guide, noise color, solfeggio — all tuned per session
Palette & style selection — nature, instruments, Tibetan bowls, sacred harmonics, and more
MP3 export — listen on any device with earbuds
Intelligence
Personal baseline calibration from your history — HRV, HR, sleep, stress medians
Protocol selected daily from your worst metric vs baseline
No long-term pattern detection — reacts to each day independently
No spike smoothing — protocol changes whenever your metrics change
No sleep debt tracking or forced protocol carry-over
Tracking
Pattern Drift charts — HRV, sleep, stress history
Day comparison — any two saved days side by side
Data Vault — import, export, automatic backup
Pro
Praenox Pro
One-time · lifetime licence · unlimited devices
Join waitlist
Coming soon
Everything in Free, plus
Fusion engine — learns your HRV trajectory and predicts decline before it happens. Forces preventive protocol when Act risk is detected
Pro
Stability Mode — locks protocol across multiple days when a chronic pattern is confirmed, not just reacting to today's worst metric
Pro
Sleep Debt Gate — detects chronic undersleep vs your personal baseline; forces Delta Induction until you catch up (3 consecutive sufficient nights to close)
Pro
HRV Velocity — tracks rising/falling trend across days; responds to trajectory, not just today's value
Pro
BiometricContext — full history feeds each generation; personal sleep target calibrated from your data, not a fixed 7h rule
Pro
Fusion stages
Stage 1 — Signal (0–20 HRV entries): Watch/Act banners appear, engine is building your model
Stage 2 — Locked (21–59 HRV entries): Act risk forces protocol; sessions become preventive
Stage 3 — Predictive (60+ entries + accuracy >55%): Self-calibrating thresholds; sub-labels Calibrating → Tuning → Predictive
Engagement & streaks
Points, levels, badges, export confirmation system (+13 listened / −5 skipped)
Streak shields — earn 1 shield every 7 streak days (max 2); fires automatically on missed days
HMAC-protected achievement profile — isolated per user account
FeatureFreePro
Biometric fingerprint synthesis
6 biometric protocols
MP3 export
Personal baseline calibration
Progress charts & day comparison
Long-term pattern detection
Fusion engine (predictive)
Stability Mode
Sleep Debt Gate
HRV Velocity tracking
Streaks, shields & milestones
PriceFreeOne-time · lifetime
Pro · Fusion engine

Control
before it
happens.

Free reacts to each day in isolation. Pro learns your trajectory — it knows when your HRV is falling before you feel it, and forces the right protocol before decline arrives.

Join Pro waitlist
Coming soon
01
Signal
0–20 HRV entries
Fusion watches and alerts. Watch/Act banners appear. No protocol is forced — the engine is building your personal model from your history.
02
Locked
21–59 HRV entries
Act risk detected forces the protocol. Sessions become preventive — the engine overrides the daily fingerprint when a decline pattern is confirmed.
03
Predictive
60+ entries · accuracy >55%
Self-calibrating thresholds. Sub-labels emerge: Calibrating → Tuning → Predictive. The model is now specific to you, not generic population baselines.