Sound is a wave capable of propagating through the air and other media from the vibration of its molecules and is perceived by us when it falls upon the hearing aid, and is subsequently transformed into electrical stimuli and directed to our brain, which will interpret this sound wave.
Human beings are able to hear a range of sound frequencies, called the audible spectrum, which extends from approximately 20 Hz to 20,000 Hz. Sounds with frequencies below 20 Hz are called infrasound, while sounds with frequencies above 20,000 Hz are called ultrasound.
Being a wave, sound has properties such as propagation speed, wavelength, frequency, and amplitude:
The speed of sound depends on the medium in which it is propagated, physical media of greater elasticity tend to propagate sound more easily, due to the proximity between its molecules. For comparison, while sound propagates in air at a speed of about 340 m/s, its speed of propagation can exceed 5000 m/s, when it is propagated on an iron bar.
The frequency (f) of a sound wave is measured in Hz, this frequency defines its height, i.e. the higher the frequency of the sound, the higher the sound is. Conversely, sounds with low frequencies are called low, or bass, sounds. As said before, humans are only able to perceive sounds between 20 Hz and 20,000 Hz.
The wavelength (λ) of sound is the space required for the sound wave to produce one complete oscillation, it can also be understood as the distance between two crests or valleys of a wave.
The amplitude of the sound wave defines its intensity, or the amount of energy that this wave carries with it, which can also be understood as the “volume of sound”.
Since the discovery of the vibrational reality of the universe, the scientific community has been studying the relationship between sound and a wide variety of physical effects on the human body. In the 1970s, physician and researcher Dr. Joseph Puleo rediscovered the Solfeggio frequencies bringing their benefits back into the public consciousness. In his research, he used mathematical numerical reductions to identify and measure six tones that rebalance the body and help promote healing. He postulated that these frequencies affected the conscious and unconscious mind in a very profound way, stimulating healing and promoting vitality, but to understand what is special about Solfeggio frequencies and how they differ from other tones, it is important to understand Schumann resonance.
In the middle of the last century, the German physicist Winfried Otto Schumann mathematically documented the electromagnetic resonances that exist between the Earth’s surface and the ionosphere, the electrically charged part of the Earth’s atmosphere. Schumann found that these electromagnetic waves, which originated from lightning discharges, resonated at a frequency between 7.86 Hz and 8 Hz. He determined that this frequency was essentially the earth’s pulsation. It has since been known as the Schumann resonance, in honor of the discoverer.
Schumann’s successor Herbert Konig furthered the research. He studied the connections between the Schumann resonances and discovered correspondences at various levels of human brain activity by comparing recordings of electroencephalograms to the electromagnetic fields of the Earth.
Konig found that the resonances correspond to five brain wave states: delta, theta, alpha, beta, and gamma.
Solfeggio frequencies cause these positive effects because they resonate harmonically with the 8 Hz Schumann resonance. Within musical scales, frequencies are drawn from 8 Hz and rise from octave to octave, until the Do/C note vibrates at the 256 Hz frequency and the La/A at 432 Hz. When music is harmonically tuned to this frequency, it in scientific tuning.
How do Solfeggio frequencies act on the human body?
432 Hz
Many old musical instruments were manufactured to play in 432 Hz tuning, and before the middle of the 20th century, this was the standard tuning for instruments. Since then, tuning at 440 Hz has become the norm. The 432 Hz frequency resonates with the 8 Hz Schumann resonance and is known for sounds that generate a deep sense of calm and tranquility.
A recent blind study in Italy demonstrated that music tuned at 432 Hz slows the heart rate when compared to 440 Hz. This frequency fills the mind with feelings of peace and well-being, and is the perfect accompaniment to yoga, gentle exercise, or sleep.
528 Hz
Scientific studies on the restorative effects of the 528 Hz frequency are still in embryonic stages, but early research indicates that it has the ability to heal and repair the body.
A 2018 study in Japan found that music tuned to the 528 Hz frequency reduced stress on the endocrine and autonomic nervous systems significantly, even after only five minutes of listening. In a study published in the Journal of Addiction Research & Therapy, the 528 Hz frequency reduced the toxic effects of ethanol, the main ingredient found in alcoholic beverages and cells. And this frequency also increased cell life by about 20%, which is even more impressive.
The energizing and healing effects of music tuned to 528 Hz make it the ideal soundtrack for when you are not feeling very well or need to relax.
396 Hz
Music tuned to 396 Hz removes fear, worry, and anxiety from the subconscious. It also eliminates feelings of guilt and subconscious negative beliefs that block the path to achieving personal goals.
Listening to music tuned to this frequency is very helpful when you want to feel uplifted and secure, and want to empower your goals and dreams.
639 Hz
The frequency of 639 Hz helps to balance emotions and improve mood. It also promotes communication, love, understanding, and harmony in interpersonal relationships.
Music at 639 Hz is perfect when you need a significant boost in love and positivity, or are dealing with conflict in relationships.
741 Hz
Music tuned at 741 Hz aids in problem solving, body purification, and self-expression. They also help awaken intuition and promote a simple and pure life.
This frequency is ideal if you are having trouble adopting a healthy lifestyle, expressing creativity, or revealing your thoughts.
852 Hz
The frequency 852 Hz helps replace negative thoughts with positive ones, and is ideal when nervousness or anxiety leaves you feeling drained of energy. It also helps awaken intuition and inner strength.
You’ll love listening to music at 852 Hz if you’re looking to communicate with everyone and live in harmony with the best that’s inside of you.