I believe someone have mention about the sound of sirens made by the Ambulance, PDRM etc. I’m here just to fulfill my promises.
See below picture for reference.
I’ll give the info on:
Wail: Long sounds… “weeeeewooooo…weeeewooo…” kinda --> Normally when there is no car infront of them that they are freely to move but as a cautions for the car in front of them.
Yelp: Fast n short sound… “weww…weww…weww…” --> Meaning, please help us in giving way fast!
Hi-Lo: High n Low sound… “weewooweewooweewoo…”–> always been use by the Ambulance (Government Hospital).
All of this sound are emergency sound. Please give way if to ur right if the car is behind you. Hope this help…