<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31307648</termId><termName>audio maskers</termName><termType>PT</termType><termNote><![CDATA[ Devices that mask audio frequencies through a variety of means, usually by outputting frequencies that mimic the tones intended to be obscured. ]]></termNote><termCreatedDate>2026-03-30 20:22:47</termCreatedDate><relation><relationType>UF</relationType><termId>31307649</termId><termName>audio masker</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31307650</termId><termName>maskers, audio</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31299038</termId><termName>sound devices</termName><termType>PT</termType></relation></term>  </Zthes>