Answer:
In order to measure and record sound accurately and scientifically, a sound device called Decibel Meter or a Sound Pressure Level (SPL) Meter is often required.
Other names for the SPL Meter are:
- Noise Meter
- Noise Dosimeter and
- Sound Level Meter.
How it works/How it is done
Sounds are collected by the Noise Meter and recorded in units called Decibels (dB). For instance, you have a recording of 0 decibels when it's extremely quiet or 30 decibels if it's a typical quiet rural area.
A motorcycle or a boom box will emit anywhere between 95 to 102 decibels.
The input mechanism for an SPL Meter is a microphone. The microphone captures the sounds, feeds it into the SPL Meter which computes how many decibels the sound it. The results are then displayed on its screen.
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