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dB calculate - decibel calculation dB calculator voltage power ratio sound pressure level matching dBA SPL sound pressure intensity ratios converter thd percent % audio engineering impedance matching bridging - sengpielaudio Sengpiel Berlin
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Microphone sensitivity ratings and conversions explained acoustics microphone transfer factor mV/Pa to sensitivity dB re 1 V/Pa or dyne/cm2 microbar pascal pascals equation formula typical microphone output level mic microphones voltage calculator
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