No
Rm11 people the answer is not here by Andrew :p
Because your brain receptors are very well tuned.
There is no where for the sound wave to reflect
due to the echo. it has different wave lengths fo can not be hear clearly.
No
If you are signing in an (otherwise) empty room the sound will echo around you and will possibly sound high-pitched. If you are signing in an empty room then the room isn't empty.
Rm11 people the answer is not here by Andrew :p
Because your brain receptors are very well tuned.
Sound waves travel in airThey bounce off of pretty much everythingIn an empty room they bounce off walls and create a echo
There is no where for the sound wave to reflect
due to the echo. it has different wave lengths fo can not be hear clearly.
#!/bin/sh [ -s $1 ] && echo "not empty" [ -f $1 ] && echo "empty" echo "not a file"
An echo is heard due to the reflection from a rigid obstacle.
An echo. It is a reflection of sound that can only be heard, and it repeats what is spoken to it.
He heard an echo, but it was very faint.
A period right after the "echo" command would echo an empty line.