<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31347484</termId><termName>condenser microphones</termName><termType>PT</termType><termNote><![CDATA[ Microphones that have a diaphragm constructed of metal or metal-coated plastic film, stretched before an electrode. This diaphragm is depressed by sound waves causing a change in the distance between the diaphragm and electrode, causing a voltage change that is subsequently rendered as recorded, amplified, or broadcast sound. These microphones require a separate source of electrical current to operate, unlike dynamic or ribbon microphones. ]]></termNote><termCreatedDate>2026-03-30 20:33:45</termCreatedDate><relation><relationType>UF</relationType><termId>31347485</termId><termName>capacitor microphones</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31347486</termId><termName>condenser microphone</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31347487</termId><termName>electrostatic microphones</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31347488</termId><termName>microphone, condenser</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31322178</termId><termName>microphones</termName><termType>PT</termType></relation></term>  </Zthes>