question: public PeriodicAmbientSoundSource ( String sound , int radius , int volume , int minInterval , int maxInterval ) { setRPClass ( "entity" ) ; put ( "type" , "entity" ) ; this . sounds = sound . split ( ", *" ) ; this . radius = radius ; this . volume = volume ; this . minInterval = minInterval ; this . maxInterval = maxInterval ; setupNotifier ( ) ; }
target:  Create an ambient sound area.