1. sound pressure; acoustic pressure
2. Sound pressureSound pressure or acoustic pressure is the local pressure deviation from the ambient (average, or equilibrium) atmospheric pressure caused by a sound wave. Sound pressure in air can be measured using a microphone, and in water using a hydrophone. The SI unit for sound pressure p is the pascal . Sound pressure level (SPL) or sound level is a logarithmic measure of the effective sound pressure of a sound relative to a reference value.
Read “Sound pressure” on English Wikipedia
Read “音圧” on Japanese Wikipedia
Read “Sound pressure” on DBpedia
Read “Sound pressure” on English Wikipedia
Read “音圧” on Japanese Wikipedia
Read “Sound pressure” on DBpedia
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