Sound Pressure

Sound pressure is the excess air pressure that occurs when a sound wave passes through a liquid or gaseous medium. Sound pressure level is measured in newtons per square meter (N/m²), and it determines the biological effect of sound on the human body.

The hearing threshold is the minimum sound pressure value that can be heard by a person. It is about 210 decibels (dB) or 210 n/m². At lower sound pressure levels, a person may not hear the sound, and at higher levels, various negative health effects may occur.

Sound pressure is used in various fields such as acoustics, medicine, industry, etc. For example, in acoustics, sound pressure is used to measure the sound level in a room, and in medicine, it is used to evaluate sound effects that may have a negative impact on human health.

In addition, sound pressure can also be used to create various sound effects in industry. For example, in the production of automobiles and aircraft, sound pressure may be used to test the sound quality of a cockpit or to test the sound insulation of a car interior.

Thus, sound pressure is an important parameter that is used in various industries and is of great importance to human health.



Sound pressure is excess air pressure that causes vibrations and waves in the environment. It occurs when sound passes through a liquid or gas and is expressed in pascals (Pa). Sound pressure level determines the biological effects of sound on the human body, and the threshold of audibility is the minimum pressure required for a sound to be heard. Sound pressure is used to measure sound quality and control sound in various fields such as film, television, music, medical technology and industry. In particular, it is an important parameter when designing sound systems for acoustic applications and for testing acoustics in buildings and spaces. In addition, sound pressure is involved in creating effects such as shock waves and explosive effects in movies. Thus, sound pressure has wide applications in engineering and science, helping us to better understand and control sound in our environment and create new sound effects. However, it is worth remembering that excess sound waves can have a negative impact on human and animal health. Therefore, it is necessary to carefully study the sound characteristics and achieve optimal sound pressure levels when working with instruments, equipment and materials. Nowadays, active sound sensors and control systems help control sound pressure levels to ensure occupational safety and health in the work environment.