What elements have an impact on the noise meter?
1. The measurement object can be separated into the measurement of sound source characteristics and the characteristic measurement of ambient noise (sound field).
2. It can be separated into steady-state noise measurement and unsteady-state noise measurement based on the time characteristics of the sound source or sound field. Non-stationary noise can be broken down into pulse sound, irregular noise, and periodic noise.
3. Based on the sound source's or the sound field's frequency characteristics, it can be classified as broadband noise, narrowband noise, or noise with pronounced pure tone components.
4. Precision measurement, engineering measurement, and noise survey are the three categories that can be separated based on the accuracy of measurement requirements.
