What is a good sound pressure level?

Sound pressure level uses a logarithmic scale to represent the sound pressure of a sound relative to a reference pressure , and it’s measured in units of decibels (dB).

For example, the faintest sound a young person with normal hearing can hear at 2,500 Hz is 0 dB SPL. In contrast, at 20 Hz (a very low frequency sound), the sound needs to be much louder at 72 dB SPL in order to just faintly hear it. … FrequencyHzdB SPLdB HL12545.0025027.0050013.50Understanding the Difference Between Sound Pressure Level … hearinglosshelp.com › blog › understanding-the-difference-between-sound…

Sound Pressure Level Formula = 20 log (p/po) where p is the sound pressure and po is the reference sound pressure of 0.00002 pascals = 0 dB the threshold of hearing at 1 kHz. … Sound Pressure Terms and Definitions … Sources at 1 mSound PressureSPL re 20 μPaTV studio0.0002 Pa20 dBReference sound pressure0.00002 Pa0 dBSound pressure terms and definitions – acoustic glossary www.acoustic-glossary.co.uk › sound-pressure

Sound Pressure Level (decibels) For a normal human ear pain is experienced at a sound pressure of order 60 Pa or 6 10 -4 atmospheres . Due to this range it is convenient to express sound pressure with a logarithmic decibel scale related typically to the lowest human hearable sound – 2 10-5 Pa or 0 dB.