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Communication Microphones and Earphones
Highquality Microphones and Generalpurpose Units
3 other sections not shown
acoustic impedance acoustic resistance air gap amplifier analogous circuit applied armature basic bass bone-conduction cabinet capacitor microphone capsule carbon microphone cardioid cavity centimetres centre ceramic characteristics cone constant coupler coupling curves damping devices diameter diaphragm directional earphone effect efficiency electrical electrical impedance electrodes electrostatic electrostatic loudspeakers elements factor field flux density frequency range frequency response front give gradient microphones granules high frequencies impedance input Lavalier Lavalier microphone leakage loudspeaker low frequencies low-frequency magnetomotive force material measurements mechanical mechanical impedance mounted moving-iron noise nonlinear normal obtained omnidirectional operation optimum output p-n junctions Permalloy piezoelectric plate polar response pole piece produced radiation rear receiver reduced relatively resonant ribbon microphones ring sensitivity signal sound pressure speech coil stiffness studio subset suitable surface telephone tests transducer transistor tube tweeter unidirectional unit various velocity vibration vocoder voltage wave