APPENDIX F - Acoustic Report

RENZO TONIN RON RUMBLE                                                                                      1 SEPTEMBER 2017




L1                      The sound pressure level that is exceeded for 1% of the time for which the given sound is
                        measured.

L10                     The sound pressure level that is exceeded for 10% of the time for which the given sound is
                        measured.

L90                     The level of noise exceeded for 90% of the time. The bottom 10% of the sample is the L90 noise
                        level expressed in units of dB(A).

Leq                     The “equivalent noise level” is the summation of noise events and integrated over a selected
                        period of time.

Reflection              Sound wave changed in direction of propagation due to a solid object obscuring its path.

SEL                     Sound Exposure Level (SEL) is the constant sound level which, if maintained for a period of 1
                        second would have the same acoustic energy as the measured noise event. SEL noise
                        measurements are useful as they can be converted to obtain Leq sound levels over any period of
                        time and can be used for predicting noise at various locations.

Sound                   A fluctuation of air pressure which is propagated as a wave through air.

Sound absorption        The ability of a material to absorb sound energy through its conversion into thermal energy.

Sound level meter       An instrument consisting of a microphone, amplifier and indicating device, having a declared
                        performance and designed to measure sound pressure levels.

Sound pressure level    The level of noise, usually expressed in decibels, as measured by a standard sound level meter with
                        a microphone.

Sound power level       Ten times the logarithm to the base 10 of the ratio of the sound power of the source to the
                        reference sound power.

Tonal noise             Containing a prominent frequency and characterised by a definite pitch.




COX ARCHITECTURE                                                        OUTDOOR RESTAURANT DECK (LEVEL 2) - 6 HERON STREET,
QB143-01F02 ACOUSTIC REPORT (2)                                                                             PEREGIAN BEACH
                                                            15                                 PATRON NOISE ASSESSMENT