Various toy or model train whistles
Happy crowd with applause and whistle, thick and full
A human whistling with his hand to produce a bird sound.
Group of men applauding in strip club with cheers and whistles. Some shouts: "Nice!". Close
A female voice whistling, cheering, or calling someone.
Electrical static crackling and whistling from radio or wireless off station
An adult male whistling a short sequence.
Blowing into a bottle, low tone
Referee or sports teacher blowing whistle X3, deep with no ambience
A gentle pulsating whistling sound of air being blown across the open neck of a glass bottle.