What Is A Frequency?

Frequency is the number of occurrences of a repeating event per unit of time. It is also occasionally referred to as temporal frequency for clarity, and is distinct from angular frequency. Frequency is measured in hertz (Hz) which is equal to one event per second. The period is the interval of time between events, so the period is the reciprocal of the frequency.

For example, if a heart beats at a frequency of 120 times a minute (2 hertz), the period, T—the interval at which the beats repeat—is half a second (60 seconds divided by 120 beats). Frequency is an important parameter used in science and engineering to specify the rate of oscillatory and vibratory phenomena, such as mechanical vibrations, audio signals (sound), radio waves, and light.

## What Do Frequencies Do?

Frequency, sometimes referred to as pitch, is the number of times per second that a sound pressure wave repeats itself. A drum beat has a much lower frequency than a whistle, and a bullfrog call has a lower frequency than a cricket. The lower the frequency, the fewer the oscillations.

## What Frequencies Are Good For Music?

528hz: You may have heard of the frequency 528 Hz as the love frequency or miracle frequency. This famous frequency is thought to bring transformation, an increase in energy, awareness, creativity, and inner peace.

432hz: Many people claim that they feel calmer, happier and more relaxed when playing and listening at 432 Hz. Continuously listening music based on 440 Hz blocks the energy whereas by lowering the pitch by just 8 Hz makes us more joyful & relaxed.

741hz: 741 Hz frequency acts as a repulsive magnet for toxins, negativity, anger, jealousy, lies and everything or act that brings negativity in our lives. It acts as a protective armor against all things negative, inside us and outside us.

This is also the frequency of Throat, the part of Truth. It is blocked by lies that we tell ourselves and to others. This beautiful frequency of 741 Hz acts as your protective armor, against all this negativity, so that something positive can take its place. If you have too much negativity in and around you, meditate along with this healing sleep music, as you let go all the negative and self deprecating thought patterns and behavior out of your subconscious.

174hz: For the relief of Pain & Stress.

A single note could change everything if you struggle with pain, stress, and poor sleep. Sounds can have a profound effect on our bodies and minds. Different frequencies can create different states of mind, and some can even help heal the body. When it comes to healing frequencies, one of the most powerful is 174 Hz.

Other frequencies: : 285 Hz, 396 Hz, 417 Hz, 639 Hz, 852 Hz.

Related Links: https://www.bettersleep.com/blog/solfeggio-frequencies-how-listening-to-174-hz-tones-can-help-you-heal/

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I got some more about Frequencies.

**Frequency** is the number of occurrences of a repeating event per unit of time. It is also occasionally referred to as *temporal frequency* for clarity, and is distinct from *angular frequency*. Frequency is measured in hertz (Hz) which is equal to one event per second. The **period** is the interval of time between events, so the period is the reciprocal of the frequency.

For example, if a heart beats at a frequency of 120 times a minute (2 hertz), the period, *T*—the interval at which the beats repeat—is half a second (60 seconds divided by 120 beats). Frequency is an important parameter used in science and engineering to specify the rate of oscillatory and vibratory phenomena, such as mechanical vibrations, audio signals (sound), radio waves, and light.For cyclical phenomena such as oscillations, waves, or for examples of simple harmonic motion, the term *frequency* is defined as the number of cycles or vibrations per unit of time. The conventional symbol for frequency is *f*; the Greek letter *ν* (nu) is also used. The *period* *T* is the time taken to complete one cycle of an oscillation or rotation. The relation between the frequency and the period is given by the equation

�=1�.

The term *temporal frequency* is used to emphasise that the frequency is characterised by the number of occurrences of a repeating event per unit time.

The SI unit of frequency is the hertz (Hz), named after the German physicist Heinrich Hertz by the International Electrotechnical Commission in 1930. It was adopted by the CGPM (Conférence générale des poids et mesures) in 1960, officially replacing the previous name, *cycle per second* (cps). The SI unit for the period, as for all measurements of time, is the second. A traditional unit of frequency used with rotating mechanical devices, where it is termed *rotational frequency*, is revolution per minute, abbreviated r/min or rpm. 60 rpm is equivalent to one hertz.As a matter of convenience, longer and slower waves, such as ocean surface waves, are more typically described by wave period rather than frequency. Short and fast waves, like audio and radio, are usually described by their frequency. Some commonly used conversions are listed below:

FrequencyPeriod1 mHz (10−3 Hz)1 ks (103 s)1 Hz (100 Hz)1 s (100 s)1 kHz (103 Hz)1 ms (10−3 s)1 MHz (106 Hz)1 μs (10−6 s)1 GHz (109 Hz)1 ns (10−9 s)1 THz (1012 Hz)1 ps (10−12 s)

* Angular frequency, usually denoted by the Greek letter *ω* (omega), is defined as the rate of change of angular displacement (during rotation), *θ* (theta), or the rate of change of the phase of a sinusoidal waveform (notably in oscillations and waves), or as the rate of change of the argument to the sine function:�(�)=sin⁡(�(�))=sin⁡(��)=sin⁡(2���)d�d�=�=2��.The unit of angular frequency is the radian per second (rad/s) but, for discrete-time signals, can also be expressed as radians per sampling interval, which is a dimensionless quantity. Angular frequency is frequency multiplied by 2π.
* Spatial frequency, denoted here by *ξ*, is analogous to temporal frequency, but with a spatial measurement replacing time measurement, e.g.:�(�)=sin⁡(�(�,�))=sin⁡(��+��)d�d�=�=2�