Brilio.net - Sound is a very important phenomenon in everyday life. Sound can be categorized based on its frequency, which is the number of vibrations per second measured in Hertz (Hz). The frequency of a sound determines how the sound is heard by the human ear. This article will discuss the different types of sounds based on their frequency and how they affect everyday life.
1. Infrasonic sound
Infrasonic sound is sound that has a frequency below 20 Hz. This sound cannot be heard by the human ear, but can be felt as vibrations. Some examples of infrasonic sound sources include earthquakes, volcanic eruptions, and some types of industrial machinery. Although inaudible, infrasonic sound can affect human health, such as causing headaches or feelings of discomfort.
2. Audible sound
Audible sound is sound that has a frequency between 20 Hz and 20,000 Hz. This is the range of frequencies that can be heard by the human ear. Audible sounds can be further divided into several categories based on their frequency:
- Low sounds (20 Hz - 250 Hz): Low frequency sounds are often heard as bass sounds. Examples of low sounds include drum sounds, thunder sounds, and heavy machine sounds.
- Intermediate sounds (250 Hz - 4,000 Hz): Intermediate frequency sounds are the sounds most often heard in everyday life. Examples of intermediate sounds include the human voice, the sound of musical instruments such as guitars and pianos, and the sound of vehicles.
- High sounds (4,000 Hz - 20,000 Hz): Sounds with high frequencies are often heard as treble sounds. Examples of high sounds include whistles, bird calls, and insect sounds.
3. Ultrasonic Sound
Ultrasonic sound is sound that has a frequency above 20,000 Hz. This sound cannot be heard by the human ear, but can be heard by some animals such as dogs and bats. Ultrasonic sound has many applications in everyday life, including in the medical and industrial fields. Examples of the use of ultrasonic sound include ultrasound (USG) for medical examinations, ultrasonic cleaning for cleaning equipment, and flaw detection in materials.
The Effect of Sound Frequency on Health
The frequency of sound not only affects how the sound sounds, but can also affect human health. Sounds with very high or very low frequencies can cause various health problems. For example, infrasonic sounds can cause headaches, nausea, and discomfort. On the other hand, ultrasonic sounds that are too strong can damage hearing and cause damage to body tissues.
Applications of Sound Frequency in Everyday Life
Sound frequency has many applications in everyday life. Some examples of these applications include:
- Communication: Sound frequencies are used in many forms of communication, including telephone, radio, and television. Different frequencies are used to transmit voice and data signals.
- Medical: Sound frequencies are used in a variety of medical procedures, including ultrasound for pregnancy testing and ultrasound therapy to treat a variety of medical conditions.
- Industry: Sound frequencies are used in a variety of industrial applications, including ultrasonic cleaning, flaw detection in materials, and ultrasonic welding.
Sound is a very important phenomenon in everyday life and can be categorized based on its frequency. Infrasonic, audible, and ultrasonic sounds have different characteristics and applications. Understanding the different types of sounds based on their frequencies can help in understanding how sound affects everyday life and how sound can be used in various applications. With this knowledge, one can better appreciate the role of sound in everyday life and how sound can be used to improve the quality of life.