acoustics Noise measurement

Acoustic Noise Measurement
Acoustic Noise Measurement

Acoustic Noise Measurement

Acoustics means phonology. Acoustic science is not only about sound, but also control of noise-causing vibrations and loud sounds. Engineers also work on how to protect people from harmful loud noises. The aim of all these studies is to harmless sounds that people do not want to hear and are annoyed with when they dive. An echo that reaches the ear after a sound in a period of one-twentieth of a second does not create any problems. However, if the delay time is prolonged, this is uncomfortable.

Acoustic science is subdivided in itself. Biological acoustics, psychological and physiological acoustics, electro acoustics, speech acoustics, architectural acoustics, physical acoustics, structural acoustics, and finally noise acoustics. The noise acoustics deals with issues such as from which point a noise is produced, how it is produced, the control of noise and the effects of noise. Hearing loss starts at frequencies 5500 and higher.

Before measuring acoustic noise, a noise assessment is required. First of all, it should be investigated whether there is a noise problem, which employees are at risk and the reasons for this. What should be done for emergency risks should be determined and employees should be informed about this.

Noise assessment cannot be sufficient if noise measurements are not made in relation to the work of the employees, only at certain points of the work environment, or if the exposure of the employees to noise is not taken into consideration or the obligations and limit values ​​imposed by legal regulations are not taken into consideration.

The limits for acoustic noise measurements are as follows:

  • Up to 8 decibels for 85 watches
  • Up to 4 decibels for 88 watches
  • Up to 2 decibels for 91 watches
  • Up to 1 decibels for 94 watches
  • Up to 6 decibels for 104 minutes
  • Up to 36 decibels for 114 seconds