Such measurements are designated dBA (see NOISE LEVEL). The sound level meter, however, does not take into account the predominant frequency region of the noise, or other factors which may cause ...

All you need to know is that the dB is the unit for sound pressure measuring (as the watt is for electric power) and that the A-weighting takes into account the typical human ear response, reducing ...

In 2003, scientists subjected 750 volunteers to a strange experiment, in the form of a fear and anxiety-inducing concert. For ...

A speaker may have the ability to output a frequency range of 20 Hz to 20 kHz ... that decibels can be measured is with a ...