FAQ

What is the Sound Pressure Level?
Sound Pressure Level is the pressure level of a sound, measured in decibels. Sound Pressure Level is usually measured using the Decibel for Sound. Note that the value of Sound Pressure Level is always positive.
Can the Sound Pressure Level be negative?
No, the Sound Pressure Level, measured in Sound cannot be negative.
What unit is used to measure Sound Pressure Level?
Sound Pressure Level is usually measured using the Decibel[dB] for Sound. Bel[dB], Neper[dB] are the few other units in which Sound Pressure Level can be measured.
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