How far away can you hear a conversation?
How far away can you hear a conversation? The normal intelligible outdoor range of the male human voice in still air is 180 m (590 ft 6.6 in). The silbo, the whistled language of the Spanish-speaking inhabitants of the Canary Island of La Gomera, is intelligible under ideal conditions at 8 km (5 miles).
How do you listen to someone’s messages through walls?
To hear through walls, start by finding a drinking glass with a wide rim. Then, hold the rim of the glass against the wall you want to listen through and rest your ear on the bottom of it. Sound waves will travel through the wall and into the glass, making it easier for you to hear through it!
Does putting a cup against a wall work?
The old classic glass to the wall trick
It’s a cliche, but it works. Take a stemless glass and place the open end against the wall. Any sound waves that permeate the wall will resonate inside the glass and your ear will better be able to capture and process them.
How do you eavesdrop a door?
To eavesdrop, start by hovering around closed doors so that if you’re caught you can pretend you were just walking by. Additionally, try listening through a keyhole, which may provide better sound, or put the rim of a thin glass to a wall and position your ear on the other side.
