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1、WhatMakesAGoodListeningEnvironment[English]WhatMakesAGoodListeningEnvironment----studyofsomeacousticprinciplesinourrehearsalbuildingLi-GenShiXing-YaNan[Abstract]Rehearsalbuildingisanimportantplaceforourdailylive.Thereare216roomsinourrehearsalbuildingandatleston
2、epianoineach.Whatensuresthattheywon’tdisturbeachotherwhenstudentsplaythepianoatthesametime?Whatmakesagoodlisteningenvironmentinsuchanarrowspace?Comparedwithnormalbuildings,therearesomeacousticprinciplesinthewww.lwkoo.cndesigningoftherehearsalbuilding.[keywords]
3、acoustic,reverberationtime,soundabsorptionandsoundinsulationPart1:ArchitecturalacousticsWhatwediscussherebelongstotheareaofarchitecturalacoustics.Whatiscalledthearchitecturalacoustics?Itincludestheborn,propagation,utilizationandcontrolsofsoundwaveswhichallrelat
4、etothebuildings.Itisadualdiscipline,partofacoustics.Inthebroadsense,structuralacousticsincludesenvironmentalacousticsandnoisecontrol.Noiseandtonequalitymustbeconsideredinthedesignprocessofrehearsalbuilding,concert,recordingstudioandrecitalhall.Generallyspeaking
5、,thedesigningofauditoriumismoreconcernedinarchitecturalacoustics.Part2:keypointsThereareseveralkeypointsinthedesigningprocess:reverberationtime,soundabsorptionmaterialandsoundinsulation.ReverberationtimeReverberationtimeisavitalacousticalcharacteristicofaloom.D
6、efinedasthetimenecessaryforasoundtodecaytoonemillionth(.)ofitswww.lwkoo.cnoriginalintensity.Inarehearsalroom,suitablereverberationtimecanmakesoundharmonic.Toolongtimemakemusiclackofrhythmanddynamics.Thelargertheroom,thelargerthereverberationtime;thesmallerthero
7、om,theshorterthereverberationtimeis.Justwhattheidealtimeisvarieswiththemusicalmediumandstyle;reverberationtimesshorterthanabout1.0secorlongerthanabout1.7secarerarelysatisfactory.tExperiment1：Samebirdcall,differentreverberationtimeYouwillbegivenasoundofbirdcall.
8、Fromthedifferentreverberationtimeyoucanhearthechangeofthebirdcall.Sabin,thefounderofarchitecturalacoustics,gavehisreverberantexpressionasearlyas19cen.T=0.049*V/aST:Reverbera
