1H index number 9,10,11,12 sounds

The recording was done behind the school near Bishan road. We used the change speed and tempo effect to change the sound of the 1 minute recording. The effect 'wahwah' was also used at about the 10 second interval. The raining sound is caused by a digger truck, while the engine revving sound is caused by he motorcycles and cars passing by while the sound was recorded.