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1、Donotmisstheuseofwirearrayspeakersystems（不要误导线阵列扬声器系统的应用）DonotmisstheuseofwirearrayspeakersystemsMinistryofinformationindustry,Instituteofelectroacoustictelevision,Professor,seniorengineerWangFujinAbstractthispapertakesoveraperiodoftime,somemisleadingphenomenai
2、ntheapplicationoflinearrayloudspeakersystem,thisshouldbesomebasicquestionsofhowtocorrectlyunderstandandgrasptheworkarebrieflydiscussed."Keywords"linearray,linesource,cylindricalwavefront,soundcontrol,acousticinterference,combfilter.Since1990s,anewmemberofthelou
3、dspeakerfamilyhasaddedanewlinespeakersystem.Inuse,ifproperlyconfigured,thelinearrayspeakersystemcanprovideasmoothlevelcoverageoverthebroadbandrange,aswellasacontrollableandstrongverticalpointingfeature.Atthesametime,itcanprovidehighSPL,suitableforalargedistance
4、forsound.Inparticular,thelinearrayloudspeakersystemiseasytoinstallandhanginthefield,andtheseobviousoutstandingperformancesarewellreceivedbyusersinmodernlarge-scalemobileperformances.However,weshouldalsoseethattherehavebeensomemisleadingphenomenaintheapplication
5、ofwirearrayloudspeakersystemsinrecentyears.Themainperformanceis:1.somespeakermanufacturersintheirproductswhenthecharacteristicpromotionisnotrigorous,makepeoplefeeltoocommercial;2.thestadium,someperformancessquarelinearrayloudspeakersysteminpublicationsontheexpe
6、rience,someofthefactsisnotaccurateenough,suchastransmissionlinearrayloudspeakersystemandconventionalsystemisdifferent,thefreetraveldistanceforeachdoublingofthesoundattenuationof3dB.Inthefarfield,thesoundpressurelevelofsoundamplificationismorethan20dBhigherthant
7、hatoftheconventionalloudspeakersystemat200meters".3.someengineeringcompanyinsometheatreprojects,givetheownerintendsforthepromotionofsoundreinforcementsystemschemeusingalinearrayloudspeakersystem,ifallowedconditionsinconstruction,interiordecorationandotheraspect
8、softhecasemaybeagoodsolution.Theproblemisthattheuseofthelineararrayloudspeakersystem,whichiscalled"representingtheadvancednatureofthesystem",isdebatable.Asforsomearticlesint
