Zmic 1/(ta.iomega*Cmic)+Rmic+ta.iomega*Lmic Microphone impedance Ztrans (intop_mic(p)/intop_mic(1))/intop_in(2*ta.vz) Transfer impedance Zin (intop_in(p)/intop_in(1))/intop_in(2*ta.vz) Input impedance Amic 2*intop_mic(1) Microphone area Zspmic Zmic*Amic Specific microphone impedance