标签: 音频系统手册

++《PHILIPS音频系统手册》SoundSystemReferenceManualPublicAddressSoundReinforcementPhilipsCommunication&SecuritySystemsBredaTheNetherlandsTel(+31)765721407FransvanderMeulen1958JubileeEdition1998SoundSystemReferenceManualIntroductionSoundsystemsareusedforamplificationofspeechormusictoenhanceintelligibilityorloudnessbyelectro-acousticmeansinordertoserveanaudiencewithahigherdegreeoflisteningcomfort.Apublicaddressdistributionsystemisdesignedprimarilytocarryliveandrecordedmessages,signaltonesandbackgroundmusic(ifrequired),fromseveraldifferentsources,toanumberofselectableremoteareas.Commonapplicationswouldbe:hotels,restaurants,railwaystations,airports,factories,oilplatforms,officebuildings,schools,shopping……