Table of Contents 1. Summary .......................................................................................................... 5 2. Pickleball Sound .............................................................................................. 6 2.1 Acoustical Characteristics ................................................................................................. 6 2.2 Measuring Pickleball Sound ............................................................................................. 8 2.3 Problems with Exponential Time Weighting ..................................................................... 9 3. Acoustical Measurements Description and Results .................................... 12 3.1 Test Description ............................................................................................................... 12 3.1.1 Purpose .................................................................................................................... 12 3.1.2 Measurements and Equipment ................................................................................ 12 3.1.3 Pickleball Courts ..................................................................................................... 12 3.1.4 Pickleballs ................................................................................................................ 13 3.1.5 Paddles ..................................................................................................................... 13 3.1.6 Measurement Locations ........................................................................................... 14 3.1.7 Environmental Conditions ....................................................................................... 15 3.2 Background Noise Level ................................................................................................. 15 3.3 Results with Players on Existing Pickleball Courts ........................................................ 17 3.3.1 Point 1 ...................................................................................................................... 17 3.3.2 Point 2 ...................................................................................................................... 19 3.3.3 Point 3 ...................................................................................................................... 20 3.3.4 Point 4 ...................................................................................................................... 22 3.3.5 Summary .................................................................................................................. 24 4. Analysis ........................................................................................................... 26 4.1 Ball Sound Pressure Level Comparison .......................................................................... 26 4.2 Frequency Band Analysis ................................................................................................ 27 4.3 Pickleball Courts Directivity ........................................................................................... 27 4.4 Paddle Impact Frequency ................................................................................................ 28 5. Sound Pressure Level Projections ................................................................ 29 5.1 Modeling Parameters ...................................................................................................... 29 5.2 Existing Conditions ......................................................................................................... 29 5.3 Unmitigated Impact of Dura 40 Ball ............................................................................... 31 5.4 Noise Abatement Plan for Dura 40 Ball .......................................................................... 31 6. Conclusions and Recommendations ............................................................. 35 6.1 Summary of Results ........................................................................................................ 35 6.2 Recommended Abatement Treatments ............................................................................ 35 6.3 Installation Cost Estimates .............................................................................................. 37 6.3.1 SonaGuard ............................................................................................................... 37 6.3.2 Acoustashield Sound Barrier ................................................................................... 38 6.3.3 Verti-Crete Wall System .......................................................................................... 38 6.3.4 QuietPerf Absorbing Panels .................................................................................... 39 Appendix ............................................................................................................. 40
2 of 58 Spendiarian & Willis Acoustics & Noise Control LLC
12/15/2019
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