DEF GRP0 Group {
  children [
    Viewpoint {
      position 0 0 0
      orientation 0 1 0 0
    }

    DEF AS0 AcousticScene {
      size -1 -1 -1
      center 0 0 0
    }

    DEF Tr0 Transform {
      translation 0 0 0
      rotation 0 1 0 0
      children [
        

###########################################################

        DEF Speaker Group {
          children [
            Shape {
              appearance Appearance {
                material Material {
                  emissiveColor 0 0 0.5
                }
              }
              geometry Box {
                size 0.5 0.5 0.5
              }
            }
 
            DEF Tr1 Transform {
              translation 0 0 0.27
              children [
	        Shape {
                  appearance Appearance {
	            material Material {
	              emissiveColor 0.08 0.08 0.08
                    }
                  }
	            geometry Circle {
                    radius 0.19
                  }
                }
              ]
            }

            DEF Tr2 Transform {
              translation 0 0 0.275
              children [
                Shape {
                  appearance Appearance {
                    material Material {
                      emissiveColor 0.04 0.04 0.04
                    }
                  }
                  geometry Circle {
                    radius 0.155
                  }
                }
              ]
            }

            DEF Tr3 Transform {
              translation 0 0 -0.27
              children [
                Shape {
                  appearance Appearance {
                    material Material {
                      emissiveColor 0.0 0 0.3
                    }
                  }
                  geometry Rectangle {
                    size 0.5 0.5
                  }
                }
              ]
            }

            DEF Tr4 Transform {
              translation 0 0 0.26
              children [
                Shape {
                  appearance Appearance {
                    material Material {
                      emissiveColor 0.0 0 0.6
                    }
                  }
                  geometry Rectangle {
                    size 0.5 0.5
                  }
                }
              ]
            }
          ]
        } # End of loudspeaker

        ###########################################################
        DEF DS0 DirectiveSound {
          source AudioSource {
            url 3
            startTime 0
            stopTime -1
          }
	  direction 0 0 1
          spatialize FALSE
	  speedOfSound 170
	  distance 0
        }
      ]
    } # Group
  ]
} # Root Group

Update OD [
 {
   ObjectDescriptorID 3
   muxScript scene.scr
 }
]