MCU21.0193-Att 1 Acoustic Report

 4. BCC Cinema Noosa Test Results
 The results of the measurements from BCC Cinema Noosa are presented in the table below:

                                  Table 3: Results of Free Weights (BCC Cinema Noosa)

                      Receiver          Background         Floor         Test           Lmax    Vibration
Drop Area                                                                                                     Audibility
                       Room              L90 (dBA)        Sample       Scenario         (dBA)    Impact
                                                            SMAI
                                                           Rubber                                              Clearly
                                                                                         57     Moderate
                                                            Gym                                                Audible
                                                          Flooring
Free Weights
                                                        Single Layer     25kg
    Area                Foyer                                                                                  Clearly
                                             45           Regupol      Dumbbell          55     Moderate
(Location 1)                                                                                                   Audible
                                                            4080
                                                           Double
                                                            Layer
                                                                                         54      Minor         Audible
                                                          Regupol
                                                            4080
                                                            SMAI
                                                           Rubber                                              Clearly
                                                                                         46     Moderate
                                                            Gym                                                Audible
                                                          Flooring
Free Weights
                                                        Single Layer     25kg
    Area              Cinema 1
                                             34           Regupol      Dumbbell          37      Minor         Audible
(Location 1)          (Level 1)
                                                            4080
                                                           Double
                                                            Layer                                               Just
                                                                                         35      Minor
                                                          Regupol                                              Audible
                                                            4080

 Weight drops from the 25kg Dumbbell conducted on the proposed floor SMAI Rubber
 Flooring again produced significant noise and vibration impacts to the adjacent foyer and the
 cinema above. The double layer of Regupol 4080 was able to significantly reduce the
 vibration impact and audibility of weight drops in the foyer and cinema.


 4.1      Wall (Airborne Noise) Test Results
 An airborne noise transmission test was conducted through the intertenancy wall. The results
 of the wall testing are presented in Table 2 as follows;

                                      Table 4: Wall Transmission Loss Test Results
        Source                  Receiver                 DnT,w                    Ctr              DnT,w + Ctr
   Lift Strength and      BCC Cinema Noosa
                                                          24                      -1                     23
  Conditioning Noosa           - Foyer

 The result is based on the overall composite sound transmission loss of the wall partition. As
 the wall tested is a temporary tenancy wall, recommendations will be made to reduce the
 noise in the neighbouring tenancy. See Section 5.2 for recommendations.




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