EDR November #20 2017 Helicopter Sounds

EDR November #10 2017 Helicopter Sounds

EDR November #9 2017 Helicopter Sounds

EDR November #13 2017 Helicopter Sounds

EDR November #19 2017 Helicopter Sounds

EDR November #17 2017 Helicopter Sounds

EDR November #15 2017 Helicopter Sounds

EDR November #8 2017 Helicopter Sounds

EDR November #12 2017 Helicopter Sounds

EDR January #2 Helicopter sounds

EDR February #20 (Helicopter Sounds)

EDR June #12 2018 car stops and helicopter sounds

EDR December #3 (Aircraft and Helicopter Sounds)

EDR November #7 2018 Noise Campaign:Cutting logs, helicopters and mowing sound.

EDR March #8 Helicopter Sound

EDR January #14 Helicopter Sound 2017

EDR August #4.01 2017 Cicadas & Helicopters' Sound

EDR August #26 2018 Helicopter sound

EDR May 2017 #13 Helicopter Sound

EDR August #3 2018 Helicopter sound and Traffic Obstruction

EDR May 2017 #7（Helicopter sound）