App A - Acoustic Report - Minor Change - 12.08.2025

Sunshine Beach Surf Club                                                         Reference: #1721d1-C
Belmore Terrace, Sunshine Beach QLD 4567                                       Date: 12 November 2024
Entertainment Noise Assessment

 3.7.2 Sound system configuration during testing
 Three (3) sound system scenarios were tested individually:                     G51 Check Item 39 ☐

    • All in-house sound systems operating cumulatively
    • Ground Floor portable PA operating only
    • Function Room portable PA operating only

 The purpose of these test scenarios were to determine the individual
 contribution of noise levels at each affected premises from each of the
 above key noise sources. A test signal was played through the
 loudspeaker systems during each scenario, for the purpose of measuring
 intrusive noise levels at the locations described in Sections 3.1 to 3.4.
 The source material was selected to be representative of the type of
 music proposed to be played at the venue. The selected source material
 for the intrusive tests was Mella Dee – “Techno Disco Tool”.

 The portable PA speakers used (as detailed in Table 4) generated
 significant noise levels throughout the venue and were observed to
 dominate low frequency noise levels received at the affected premises
 when compared to the scenario where only the in-house sound system
 was operating. For example, at Location 2 (L2), the level measured at
 63Hz when the portable PA speakers were operating at ground level was
 7 dB higher than levels measured at 63Hz when only the in-house sound
 system was operating. This finding indicates that booked entertainment
 providing their own sound system may have potential to dominate low
 frequency noise levels external to the premises, depending on the power
 of portable PA speakers brought into the venue by entertainment.
 Due to the observed configuration of the venue’s sound system, it is
 highly unlikely for portable standalone PA speakers on the stage within
 the Main Bar Lounge (ground floor) to operate concurrently with the
 surrounding in-house distributed sound system. The two systems would
 not be linked and as a result, any signal played through the systems
 would be independent of one another and clash.

 With regard to cumulative noise, a -3 dB adjustment is applied in Section
 4 to noise limits to consider concurrent operation of both the ground floor
 and function room standalone portable PA speaker entertainment. This is
 discussed further in Section 4. The lowest noise limit calculated at the
 CEMLs across each of the 3 scenarios (plus patron noise, refer to
 Section 3.8) is considered the final maximum noise limit at the CEML.
 This is expected to suitably address cumulative noise generated by the
 venue.




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