I listened to 528 Hz on YouTube for years. Since using SINE and seeing the bio data, I realize: the YouTube version barely did anything. The difference with real-time synthesis is huge.
— — Katharina R.
528 HzSolfeggio Frequencies
Ancient Frequencies. Modern Precision.
From Gregorian chants to neuroscience: solfeggio frequencies have been used for healing and transformation for centuries. SINE generates them in real-time with 0.01 Hz precision and shows you through bio-resonance what's actually happening in your body.
+350k
★★★★★
Used by thousands of meditators
The History
From sacred chants to measurable science
Gregorian Origins
In the 11th century, Benedictine monk Guido d'Arezzo developed solmization: UT, RE, MI, FA, SOL, LA. Gregorian chants were based on precise frequency ratios that were physically felt in church spaces.
Rediscovery in 1974
Dr. Joseph Puleo applied numerology to the Bible and derived a series of six frequencies from the Book of Numbers: 396, 417, 528, 639, 741, 852 Hz. Three more (174, 285, 963 Hz) were added later.
Modern Research
Today, universities are studying the specific effects of individual frequencies. 528 Hz has the strongest evidence base, with studies on cortisol reduction, oxytocin increase, and autonomic stress response. The research is young but promising.
7 days free
No credit card
Cancel anytime
GDPR compliant
Data stays private
The Frequencies
10 Frequencies. Each With a Purpose.
From the deepest grounding to the highest consciousness expansion. Each solfeggio frequency has a specific effect.
174 HzPain Relief
Grounding & physical comfort
285 HzTissue Healing
Cellular regeneration
396 HzLiberation
Release fear & guilt
417 HzChange
Break patterns
432 HzNatural Harmony
Verdi's A, in tune with nature
528 HzLove Frequency
Transformation & DNA repair
639 HzConnection
Harmonize relationships
741 HzIntuition
Awaken self-expression
852 HzAwareness
Spiritual perception
963 HzUnity
Crown chakra & awakening
432 Hz vs. 440 Hz
The Concert Pitch Debate
In 1953, A = 440 Hz became the international standard. Many musicians and researchers argue that 432 Hz sounds more natural. What does science say?
33 Participants
Music Perception, 2019
Double-blind study: music at 432 Hz reduced heart rate and blood pressure more than the same music at 440 Hz. Listeners found 432 Hz more pleasant.
60 Participants
University of Florence, 2020
Controlled study: participants showed significantly greater calmness at 432 Hz compared to 440 Hz. Blood pressure and heart rate were measurably lower.
Balanced View
Current Evidence
The evidence is promising but still limited. Effects are subtle and individual. That's exactly why SINE measures your personal body response, instead of just claiming it works.
Spotlight
528 Hz: The Love Frequency
2017Explore Journal (Japan)
Japanese study: 528 Hz music significantly reduced salivary cortisol and increased oxytocin. The autonomic nervous system measurably shifted toward parasympathetic activity.
2018Journal of Addiction Research & Therapy
528 Hz significantly reduced anxiety-associated behavior in an animal model. Researchers suggest an influence on the endocrine system.
Note: These studies are promising, but sample sizes are still small. More research is needed. SINE lets you measure the effect on your own body.
The Difference
Precise Frequencies vs. Compressed Files
YouTube, Spotify & Other Apps
- ✕MP3 compression distorts exact frequencies
- ✕No guarantee the frequency is accurate
- ✕Fixed presets with no customization
- ✕No bio-feedback or body response data
- ✕No combination with binaural beats
- ✕No scientific validation
SINE
- ✓Real-time synthesis: frequency is mathematically exact
- ✓0.01 Hz precision: 528 Hz is truly 528 Hz
- ✓Any frequency freely adjustable in the Creator
- ✓Bio-resonance tracks heart rate & HRV live
- ✓Combine solfeggio + binaural beats + ambient
- ✓Session insights show measurable body response
Creator
Your personal frequency lab
Instead of playing compressed solfeggio videos, you generate every frequency in real-time.
🎵
Set Any Solfeggio Frequency Precisely.
Choose 528 Hz, 432 Hz, or any other frequency from 20 Hz to 20 kHz. No compressed files. SINE generates the waveform in real-time with mathematical precision.
Base Frequency🧠
Combine Solfeggio With Brainwave Entrainment.
Layer a binaural beat on top of your solfeggio frequency. 528 Hz base with 6 Hz theta beat for deep meditation. 432 Hz with 2 Hz delta for sleep. Combinations no other app offers.
Binaural Layer❤️
Measure Which Frequency Changes YOU.
Connect your Apple Watch. See heart rate and HRV in real-time. After each session: which solfeggio frequency calmed your nervous system the most. With numbers, not guesswork.
Bio-Resonance♥Resonance
Experiences
What Practitioners Are Saying
The combination of 432 Hz and theta binaural beats completely changed my meditation. The HRV data confirms what I feel. It works deeper than anything I've tried before.
— — Thomas W.
432 Hz + ThetaAs a yoga teacher, I use solfeggio frequencies in my classes. My students report deeper relaxation since I switched from Spotify to SINE.
— — Leila M.
Yoga & Sound HealingFAQ
Frequently Asked Questions
What are the 9 solfeggio frequencies?
The nine solfeggio frequencies are: 174 Hz (pain relief), 285 Hz (tissue healing), 396 Hz (release fear), 417 Hz (change), 528 Hz (love frequency), 639 Hz (relationships), 741 Hz (intuition), 852 Hz (awareness), and 963 Hz (unity). 432 Hz is often added as a related harmonic frequency.
What is 528 Hz good for?
528 Hz is called the 'love frequency' or 'miracle frequency.' A Japanese study (2017) showed: 528 Hz reduced cortisol and increased oxytocin. Another study (2018) found anxiety-reducing effects. In SINE, you can set 528 Hz as a base frequency and measure with bio-resonance whether it works for you.
Do solfeggio frequencies actually work?
Research is promising but still young. 528 Hz has the strongest evidence with studies on cortisol and oxytocin. 432 Hz shows effects on heart rate and blood pressure. For other frequencies, data is thinner. That's exactly why SINE offers bio-resonance tracking so you can measure the effect on your own body instead of guessing.
What's the difference between 432 Hz and 440 Hz?
440 Hz has been the international concert pitch standard since 1953. 432 Hz is slightly lower and many perceive it as warmer and more natural. Double-blind studies show: 432 Hz can reduce heart rate and blood pressure more. Effects are subtle. In SINE you can test both and compare via bio-resonance.
What's the best solfeggio frequency for sleep?
For sleep, 174 Hz (grounding) or 432 Hz (natural harmony) work well as a base frequency, combined with a delta binaural beat (2-3 Hz). In SINE, you can set this combination in the Creator and use bio-resonance to find which frequency best guides your body into sleep.
Ready?
Stop guessing. Start measuring.
7 days free. No credit card. Generate any solfeggio frequency in real-time.
7 days free
No credit card
Cancel anytime