The sensitivity must be a negative dB value.ġ pascal = 10 µbars = 10 dynes/cm 2 and 1 µbar = 1 dyne/cm 2 = 0.1 pascalġ mV/Pa = 0.1 mV/µbar or 1 mV/µbar = 10 mV/Pa and pascal = newton/m 2Ĭalculation formulas: Sensitivity = 20 × log (transfer factor) and transfer factor = 10 sensitivity /20 Reference: 94 dBSPL ≡ 1 pascal = 10 µbars = 10 dynes/cm 2Īuditory threshold: 0 dBSPL ≡ 0.00002 Pa = 0.0002 dyne/cm 2įill out the respective box and click on the calculation button below. Microphones simply convert the sound pressure deviations p (pascal Pa) to audio voltage V (volts V).įorget necessarily the energy as output power of the microphone! In the data sheets the sensitivity always applies to the The μbar found in some non-European specifications refers to 74 dBSPL (20 dB less than 1 Pa)Īnd the sensitivity or the sensitivity factor is not expressed as transfer factor in the usual form of This reference point is now accepted for specifying the sensitivity of microphones.
You will see the program but the function will not work.ġ – Sensitivity (new): dB re 1 V/Pa ← → Transfer factor : mV/Pa International standards have established 1 pascal (Pa) as 94 dBSPL (sound pressure level). The used browser does not support JavaScript.
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